In these last days is having many updates and when I think it will improve some emulation only worsening emulations that already worked well, for example: Dragon Ball Fusions worked at 40fps is now at 20 fps why? And Pokémon ORAS worked at 30fps now is at 20fps too !!
Do you remember exactly on which version this performance issue began?
started from version 929.
can you take a screenshot from 929 and 928 highlighting the difference (where the fps difference occurs)?