Stockfish NNUE
Stockfishh NNUE is easily in the first place, and by a large margin, in the ongoing cccc preliminary round.

round 69 (¬_¬ )
The best number from 1-100

I cant test your acid ape chess apps, as it is not free version. Do these
1. Check the number of running cpu. ( set 4-8 cores as per your hardware)
2. Download latest Neural network.
3.Compare speed of NNUE vs classical ( NNUE should have 70% speed of classical Stockfish)
Check my posts for other settings. If you have done all of these, and still the engine is playing poorly, contact the author. ( I dont know who did those android compile).
https://www.chess.com/forum/view/general/how-to-set-up-your-droidfish-android-stockfish-properly
https://www.chess.com/forum/view/general/how-to-install-stockfish-nnue?page=1#last_comment
Hei ! I install Stockfish Nnue in Acid ape Chess ( Android arm v7 ) I put the network in the engine file directory how drmboss say, but ... Stockfish NNUE can beat Stockfish 7 ( 3170 elo ) but can't beat Stockfish 10 ( 3464 elo ) . Help me please to configure him. Look.