Increases cache size to up to 40MB

quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip01Core/store/sqlite/SQLiteEventStore.kt

@@ -82,6 +82,9 @@ class SQLiteEventStore(
         // The DB can be corrupted if the OS is shutdown before sync, which generally
         // doesn't happen on Android
         db.execSQL("PRAGMA synchronous = OFF")
+
+        // Cache to keep larger parts of the index in memory
+        db.execSQL("PRAGMA cache_size=10000;"); // Cache 10,000 pages
     }
 
     override fun onCreate(db: SQLiteDatabase) {