Stremio has been awful for me recently on android tv. I looked into nuvio as a replacement (can use stremio addons and import your libraries and stuff, has some other nice features like skipping anime intros) as well as downgrading stremio to version 1.8.4 (use apkmirror or something and a universal installer for the app bundle). Both ways seem to be working well.

Can also try helix! I think there is another one called kakoune but I haven’t followed that for a long time