Could also be that your phone isnt powerful enough. The game works perfectly fine on my 2 Phones.
To run the animations in this game properly your Phone should have at least:
4 GB Ram ( 6 much better )
Adreno 650 or higher
Snapdragon 860 or higher
Android 10 or higher
Im sorry i dont want to sound mean but the animations are not going to run properly on a 200 €/$ phone or an older Device.
If your phone does have the power to run it and the animations are still laggy please look in the developer settings of your device. There are settings to prevent or force certain actions. There should also be tutorials how to fix laggy animations in vn on android.