diff --git a/app/build.gradle b/app/build.gradle
index 84d2d694a..5a4acdfb2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -184,9 +184,6 @@ dependencies {
     //noinspection GradleDependency
     implementation "ca.allanwang.kau:core-ui:$KAU"
 
-    // TODO temp
-    implementation "org.jetbrains.anko:anko-commons:0.10.8"
-
     implementation "androidx.core:core-ktx:${KTX}"
 
 //    implementation "org.koin:koin-android:${KOIN}"
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/activities/IntroActivity.kt b/app/src/main/kotlin/com/pitchedapps/frost/activities/IntroActivity.kt
index a3ab61727..4aa0966c6 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/activities/IntroActivity.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/activities/IntroActivity.kt
@@ -53,7 +53,6 @@ import com.pitchedapps.frost.intro.IntroTabTouchFragment
 import com.pitchedapps.frost.utils.Prefs
 import com.pitchedapps.frost.utils.cookies
 import com.pitchedapps.frost.utils.launchNewTask
-import org.jetbrains.anko.find
 
 /**
  * Created by Allan Wang on 2017-07-25.
@@ -137,13 +136,13 @@ class IntroActivity : KauBaseActivity(), ViewPager.PageTransformer, ViewPager.On
         val lastView: View? = fragments.last().view
         arrayOf<View?>(
             skip, indicator, next,
-            lastView?.find(R.id.intro_title),
-            lastView?.find(R.id.intro_desc)
+            lastView?.findViewById(R.id.intro_title),
+            lastView?.findViewById(R.id.intro_desc)
         ).forEach {
             it?.animate()?.alpha(0f)?.setDuration(600)?.start()
         }
         if (Prefs.textColor != Color.WHITE) {
-            val f = lastView?.find<ImageView>(R.id.intro_image)?.drawable
+            val f = lastView?.findViewById<ImageView>(R.id.intro_image)?.drawable
             if (f != null)
                 ValueAnimator.ofFloat(0f, 1f).apply {
                     addUpdateListener {
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/settings/Debug.kt b/app/src/main/kotlin/com/pitchedapps/frost/settings/Debug.kt
index 4b538e877..ece1f6776 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/settings/Debug.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/settings/Debug.kt
@@ -21,6 +21,7 @@ import ca.allanwang.kau.kpref.activity.KPrefAdapterBuilder
 import ca.allanwang.kau.utils.materialDialog
 import ca.allanwang.kau.utils.startActivityForResult
 import ca.allanwang.kau.utils.string
+import ca.allanwang.kau.utils.toast
 import com.pitchedapps.frost.R
 import com.pitchedapps.frost.activities.DebugActivity
 import com.pitchedapps.frost.activities.SettingsActivity
@@ -35,11 +36,13 @@ import com.pitchedapps.frost.facebook.parsers.SearchParser
 import com.pitchedapps.frost.utils.L
 import com.pitchedapps.frost.utils.frostUriFromFile
 import com.pitchedapps.frost.utils.sendFrostEmail
-import org.jetbrains.anko.doAsync
-import org.jetbrains.anko.toast
-import org.jetbrains.anko.uiThread
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import java.io.File
-import java.util.concurrent.Future
 
 /**
  * Created by Allan Wang on 2017-06-30.
@@ -69,26 +72,29 @@ fun SettingsActivity.getDebugPrefs(): KPrefAdapterBuilder.() -> Unit = {
                 itemsCallback { dialog, _, position, _ ->
                     dialog.dismiss()
                     val parser = parsers[position]
-                    var attempt: Future<Unit>? = null
+                    var attempt: Job? = null
                     val loading = materialDialog {
                         content(parser.nameRes)
                         progress(true, 100)
                         negativeText(R.string.kau_cancel)
                         onNegative { dialog, _ ->
-                            attempt?.cancel(true)
+                            attempt?.cancel()
                             dialog.dismiss()
                         }
                         canceledOnTouchOutside(false)
                     }
 
-                    attempt = loading.doAsync({
-                        createEmail(parser, "Error: ${it.message}")
-                    }) {
-                        val data = parser.parse(FbCookie.webCookie)
-                        uiThread {
-                            if (it.isCancelled) return@uiThread
-                            it.dismiss()
-                            createEmail(parser, data?.data)
+                    attempt = launch(Dispatchers.IO) {
+                        try {
+                            val data = parser.parse(FbCookie.webCookie)
+                            withContext(Dispatchers.Main) {
+                                if (!isActive)
+                                    return@withContext
+                                loading.dismiss()
+                                createEmail(parser, data?.data)
+                            }
+                        } catch (e: Exception) {
+                            createEmail(parser, "Error: ${e.message}")
                         }
                     }
                 }
@@ -123,14 +129,20 @@ fun SettingsActivity.sendDebug(url: String, html: String?) {
         dismissListener { downloader.cancel() }
     }
 
-    md.doAsync {
-        downloader.loadAndZip(ZIP_NAME, { progress ->
-            uiThread { it.setProgress(progress) }
-        }) { success ->
-            uiThread {
-                it.dismiss()
+    val progressChannel = Channel<Int>(10)
+
+    launch(Dispatchers.Main) {
+        for (p in progressChannel) {
+            md.setProgress(p)
+        }
+    }
+    launch(Dispatchers.IO) {
+        downloader.loadAndZip(ZIP_NAME, { progressChannel.offer(it) }) { success ->
+            launch(Dispatchers.Main) {
+                if (!isActive) return@launch
+                md.dismiss()
                 if (success) {
-                    val zipUri = it.context.frostUriFromFile(
+                    val zipUri = frostUriFromFile(
                         File(downloader.baseDir, "$ZIP_NAME.zip")
                     )
                     L.i { "Sending debug zip with uri $zipUri" }
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/web/DebugWebView.kt b/app/src/main/kotlin/com/pitchedapps/frost/web/DebugWebView.kt
index bb1962211..226683096 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/web/DebugWebView.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/web/DebugWebView.kt
@@ -24,6 +24,7 @@ import android.util.AttributeSet
 import android.view.View
 import android.webkit.WebView
 import androidx.annotation.WorkerThread
+import ca.allanwang.kau.utils.withAlpha
 import com.pitchedapps.frost.facebook.USER_AGENT_BASIC
 import com.pitchedapps.frost.injectors.CssAssets
 import com.pitchedapps.frost.injectors.CssHider
@@ -32,7 +33,6 @@ import com.pitchedapps.frost.utils.L
 import com.pitchedapps.frost.utils.Prefs
 import com.pitchedapps.frost.utils.createFreshFile
 import com.pitchedapps.frost.utils.isFacebookUrl
-import org.jetbrains.anko.withAlpha
 import java.io.File
 
 /**
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/web/FrostUrlOverlayValidator.kt b/app/src/main/kotlin/com/pitchedapps/frost/web/FrostUrlOverlayValidator.kt
index 490c02e5a..24885fdf4 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/web/FrostUrlOverlayValidator.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/web/FrostUrlOverlayValidator.kt
@@ -16,9 +16,9 @@
  */
 package com.pitchedapps.frost.web
 
+import ca.allanwang.kau.utils.runOnUiThread
 import com.pitchedapps.frost.activities.WebOverlayActivity
 import com.pitchedapps.frost.activities.WebOverlayActivityBase
-import com.pitchedapps.frost.activities.WebOverlayBasicActivity
 import com.pitchedapps.frost.contracts.VideoViewHolder
 import com.pitchedapps.frost.facebook.FbCookie
 import com.pitchedapps.frost.facebook.FbItem
@@ -34,7 +34,6 @@ import com.pitchedapps.frost.utils.launchImageActivity
 import com.pitchedapps.frost.utils.launchWebOverlay
 import com.pitchedapps.frost.utils.launchWebOverlayBasic
 import com.pitchedapps.frost.views.FrostWebView
-import org.jetbrains.anko.runOnUiThread
 
 /**
  * Created by Allan Wang on 2017-08-15.
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewClients.kt b/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewClients.kt
index ab97c0a81..2e8408ea0 100644
--- a/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewClients.kt
+++ b/app/src/main/kotlin/com/pitchedapps/frost/web/FrostWebViewClients.kt
@@ -22,6 +22,7 @@ import android.webkit.WebResourceRequest
 import android.webkit.WebResourceResponse
 import android.webkit.WebView
 import android.webkit.WebViewClient
+import ca.allanwang.kau.utils.withAlpha
 import com.pitchedapps.frost.facebook.FB_URL_BASE
 import com.pitchedapps.frost.facebook.FbCookie
 import com.pitchedapps.frost.facebook.FbItem
@@ -41,7 +42,6 @@ import com.pitchedapps.frost.utils.launchImageActivity
 import com.pitchedapps.frost.utils.resolveActivityForUri
 import com.pitchedapps.frost.views.FrostWebView
 import kotlinx.coroutines.channels.SendChannel
-import org.jetbrains.anko.withAlpha
 
 /**
  * Created by Allan Wang on 2017-05-31.
diff --git a/app/src/main/res/xml/frost_changelog.xml b/app/src/main/res/xml/frost_changelog.xml
index 5f047b351..3dae4a5d0 100644
--- a/app/src/main/res/xml/frost_changelog.xml
+++ b/app/src/main/res/xml/frost_changelog.xml
@@ -6,11 +6,19 @@
     <item text="" />
     -->
 
+    <version title="v2.2.0" />
+    <item text="Rewrite a lot of internal logic to optimize loading" />
+    <item text="Change default user agent to new android version, previously a desktop user agent" />
+    <item text="" />
+    <item text="" />
+    <item text="" />
+    <item text="" />
+    <item text="" />
+    <item text="" />
+    <item text="" />
+
     <version title="v2.1.2" />
     <item text="Fix message notifications with just one other user" />
-    <item text="" />
-    <item text="" />
-    <item text="" />
 
     <version title="v2.1.1" />
     <item text="Fix link loading for some notifications. Some will redirect to the main notification page" />
diff --git a/docs/Changelog.md b/docs/Changelog.md
index eb6d1fe34..e6372f3d4 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v2.2.0
+* Rewrite a lot of internal logic to optimize loading
+* Change default user agent to new android version, previously a desktop user agent
+
 ## v2.1.2
 * Fix message notifications with just one other user