diff --git a/refilc/android/app/build.gradle b/refilc/android/app/build.gradle
index b45ab540..9dd0a095 100644
--- a/refilc/android/app/build.gradle
+++ b/refilc/android/app/build.gradle
@@ -79,6 +79,7 @@ android {
         versionName flutterVersionName
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
+        resConfigs "en"
     }
 
     compileOptions {
@@ -127,7 +128,9 @@ android {
             renderscriptDebuggable false
             pseudoLocalesEnabled false
             zipAlignEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            crunchPngs true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'),
+                    'proguard-rules.pro'
         }
     }
     
diff --git a/refilc/android/gradle.properties b/refilc/android/gradle.properties
index d6f8746c..71c41527 100644
--- a/refilc/android/gradle.properties
+++ b/refilc/android/gradle.properties
@@ -1,4 +1,8 @@
-org.gradle.jvmargs=-Xmx6G -XX:MaxMetaspaceSize=4G -XX:+HeapDumpOnOutOfMemoryError
+org.gradle.jvmargs=-Xmx6G -XX:MaxMetaspaceSize=4G -XX:+HeapDumpOnOutOfMemoryError -XX:+UseParallelGC
 android.useAndroidX=true
 android.enableJetifier=true
+org.gradle.configuration-cache=true
+org.gradle.configuration-cache.problems=warn
+org.gradle.parallel=true
+org.gradle.caching=true
 # kotlin.jvm.target.validation.mode=IGNORE
\ No newline at end of file