Lutris on SteamDeck = LoL 30min fps drop

I’m using the latest stable version of Lutris on Steam Deck to play League of Legends with game mode. Every game, exactly after 30 minutes, I experience a significant FPS drop. It doesn’t seem to be a problem with the Steam Deck, as far as I can tell. Has anyone encountered similar issues or knows how to fix it?

I’ve already followed most of the advice from this site: 📈 Optimise - League of Linux · The Hub for Everything Riot Games on Linux

Thanks in advance!

Yes, I have encountered a very similar issue in Minecraft Dungeons game and made a post about it, check out my profile.

Basically, you have to experiment with different VK3D and other runner options and version.