title: Android App is taking too long to start
body: <p>I searched a lot for the issue but the only answer i could find is refactoring the code from onCreate to enable quick startup. But the problem looks different in my case.
  I and my team member are working on same code synchronized through GITHUB,builds made by him opens in a flash and builds made by me takes more than 10 seconds to start up.
  Another issue, his builds are of 90MB or so and my builds are just 30MB. App is anyway fully functional but the difference seen in startup time and build size is too huge.</p>
  
  <p>I am not sure about his system configuration, but I use JAVA8 for compilation, SDK 24 and Gradle 2.10 for building the app.</p>
  
  <p>Here is my gradle file</p>
  
  <pre><code>buildscript {
      repositories {
          jcenter()
          /*flatDir {
              dirs 'libs'
          }*/
          maven { url 'https://maven.fabric.io/public' }
      }
  
      dependencies {
          //compile(name:'library-release', ext:'aar')
          classpath 'io.realm:realm-gradle-plugin:0.88.0'
          classpath 'io.fabric.tools:gradle:1.21.2'
      }
  }
  apply plugin: 'com.android.application'
  apply plugin: 'realm-android'
  apply plugin: 'io.fabric'
  
  repositories {
      maven { url 'https://maven.fabric.io/public' }
  }
  
  
  android {
      compileSdkVersion 24
      buildToolsVersion '24.0.0'
  
      useLibrary 'org.apache.http.legacy'
      dexOptions {
          maxProcessCount 4 // this is the default value
          javaMaxHeapSize "4g"
          dexInProcess = false
      }
  
      defaultConfig {
          applicationId "com.sample.app"
          minSdkVersion 21
          targetSdkVersion 24
          versionCode 31
          versionName "1.0"
          multiDexEnabled true
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          /*debug {
              minifyEnabled true
              useProguard false
          }*/
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      sourceSets {
          main {
              java.srcDirs = ['src/main/java']
          }
          robolectric {
              java.srcDir file('src/test/java/')
          }
      }
  
  }
  
  dependencies {
      compile fileTree(include: ['*.jar'], dir: 'libs')
      compile('com.twitter.sdk.android:twitter:1.9.0@aar') {
          transitive = true;
      }
      testCompile 'org.robolectric:shadows-play-services:3.0'
      testCompile 'org.robolectric:shadows-support-v4:3.0'
      testCompile 'org.powermock:powermock-module-junit4:1.6.2'
      testCompile 'org.powermock:powermock-module-junit4-rule:1.6.2'
      testCompile 'org.powermock:powermock-api-mockito:1.6.2'
      testCompile 'org.powermock:powermock-classloading-xstream:1.6.2'
      testCompile 'junit:junit:4.12'
      testCompile 'org.robolectric:robolectric:3.0'
      testCompile 'org.assertj:assertj-core:1.7.0'
      androidTestCompile 'com.android.support:support-annotations:24.0.0'
      androidTestCompile 'com.android.support.test:runner:0.4'
      androidTestCompile 'com.android.support.test:rules:0.4'
      androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1'
      compile('com.crashlytics.sdk.android:crashlytics:2.5.7@aar') {
          transitive = true;
      }
  
      //    compile(group: 'com.google.gms', name: 'google-services', version: '2.0.0-beta4', ext: 'pom')
      //apply plugin: 'com.android.application'
      compile 'com.google.android.gms:play-services:9.2.1'
      compile 'com.google.android.gms:play-services-location:9.2.1'
      compile 'com.google.android.gms:play-services-gcm:9.2.1'
      compile 'com.mcxiaoke.volley:library:1.0.15'
      compile 'com.github.bumptech.glide:glide:3.7.0'
      compile 'com.android.support:support-v4:24.0.0'
      compile 'com.android.support:appcompat-v7:24.0.0'
      compile 'com.android.support:design:24.0.0'
      compile 'com.android.support:recyclerview-v7:24.0.0'
      compile 'com.facebook.android:facebook-android-sdk:4.7.0'
      compile 'com.squareup.okhttp3:okhttp:3.2.0'
      compile 'com.coinbase.android:coinbase-android-sdk:1.0.1'
      compile 'org.roboguice:roboguice:2.0'
      compile 'pl.droidsonroids.gif:android-gif-drawable:1.1.14'
      compile 'com.sprylab.android.texturevideoview:texturevideoview:1.1.1'
      compile 'com.google.code.gson:gson:2.4'
      compile 'com.google.android.gms:play-services-ads:9.2.1'
      compile 'com.google.android.gms:play-services-auth:9.2.1'
  }
  //put 'com.google.gms.google-services' plugin at the bottom
  apply plugin: 'com.google.gms.google-services'
  </code></pre>