Let’s be realistic: Android 4.4.2 devices usually have 1GB or less of RAM. The standard Facebook app is a resource hog. Use these tweaks to keep it usable:

The modern Facebook app relies on new API levels (specifically API 19 for KitKat) that are far beyond what the official 2026 app uses.

If you prefer the full Facebook experience, you must install an older "legacy" version. Facebook Lite for Android - Download the APK from Uptodown