diff --git a/worldwind/src/androidMain/kotlin/earth/worldwind/util/ormlite/ConnectionSource.kt b/worldwind/src/androidMain/kotlin/earth/worldwind/util/ormlite/ConnectionSource.kt
index 21420c023..a5009a6f6 100644
--- a/worldwind/src/androidMain/kotlin/earth/worldwind/util/ormlite/ConnectionSource.kt
+++ b/worldwind/src/androidMain/kotlin/earth/worldwind/util/ormlite/ConnectionSource.kt
@@ -1,9 +1,12 @@
 package earth.worldwind.util.ormlite
 
-import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteDatabase.*
 import com.j256.ormlite.android.AndroidConnectionSource
 import com.j256.ormlite.support.ConnectionSource
 
 actual fun initConnection(pathName: String, readOnly: Boolean): ConnectionSource = AndroidConnectionSource(
-    SQLiteDatabase.openDatabase(pathName, null, if (readOnly) SQLiteDatabase.OPEN_READONLY else SQLiteDatabase.OPEN_READWRITE or SQLiteDatabase.CREATE_IF_NECESSARY)
+    openDatabase(
+        pathName, null,
+        if (readOnly) OPEN_READONLY else OPEN_READWRITE or CREATE_IF_NECESSARY or ENABLE_WRITE_AHEAD_LOGGING
+    ).also { it.execSQL("PRAGMA synchronous = NORMAL") }
 )
\ No newline at end of file
diff --git a/worldwind/src/commonMain/kotlin/earth/worldwind/render/RenderContext.kt b/worldwind/src/commonMain/kotlin/earth/worldwind/render/RenderContext.kt
index c66959d00..aaa0b8198 100644
--- a/worldwind/src/commonMain/kotlin/earth/worldwind/render/RenderContext.kt
+++ b/worldwind/src/commonMain/kotlin/earth/worldwind/render/RenderContext.kt
@@ -360,7 +360,7 @@ open class RenderContext {
     inline fun <reified T : Drawable> getDrawablePool(): Pool<T> {
         val key = T::class
         // use SynchronizedPool; acquire and are release may be called in separate threads
-        return drawablePools[key] as Pool<T>? ?: SynchronizedPool<T>().also { drawablePools[key] = it }
+        return drawablePools[key] as? Pool<T> ?: SynchronizedPool<T>().also { drawablePools[key] = it }
     }
 
     fun offerPickedObject(pickedObject: PickedObject) { pickedObjects?.offerPickedObject(pickedObject) }
diff --git a/worldwind/src/jvmCommonMain/kotlin/earth/worldwind/ogc/gpkg/GeoPackage.kt b/worldwind/src/jvmCommonMain/kotlin/earth/worldwind/ogc/gpkg/GeoPackage.kt
index 42c1be4f3..6b3c32d4e 100644
--- a/worldwind/src/jvmCommonMain/kotlin/earth/worldwind/ogc/gpkg/GeoPackage.kt
+++ b/worldwind/src/jvmCommonMain/kotlin/earth/worldwind/ogc/gpkg/GeoPackage.kt
@@ -86,16 +86,7 @@ open class GeoPackage(val pathName: String, val isReadOnly: Boolean = true) {
     }
 
     suspend fun readTilesDataSize(tableName: String) = withContext(Dispatchers.IO) {
-        val connection = connectionSource.getReadOnlyConnection(tableName)
-
-        try {
-            connection.queryForLong("SELECT SUM(LENGTH(tile_data)) FROM '$tableName'")
-        } catch (e: SQLException) {
-            Logger.logMessage(Logger.WARN, "GeoPackage", "readTilesDataSize", "Could not read tiles data size", e)
-            0L // Return zero if table does not exist
-        } finally {
-            connectionSource.releaseConnection(connection)
-        }
+        getTileUserDataDao(tableName).queryRawValue("SELECT SUM(LENGTH(tile_data)) FROM '$tableName'")
     }
 
     suspend fun readTileUserData(