GPD Win 2 Gamescope session running worse than desktop session

Hello,

I installed Bazzite on my GPD Win 2. I previously used Manjaro but wanted to try Bazzite after hearing good things about it. I especially wanted to try out the gamescope session like the steam deck uses, hoping it could boost my performance a little and improve the handheld pc workflow when compared to running off a desktop session. Although the distro installed fine, I find the gamescope session runs significantly worse than when running on a desktop manjaro session or even a bazzite desktop session, like -20 fps worse. Additionally, I find the bazzite start up time much slower than when I was using manjaro. Bazzite can take almost a minute to finally boot into steam.

Additionally, entering big picture mode from desktop steam runs smooth, and running a game via gamescope from desktop steam runs smooth too. The issues only occur when using the gamescope-session.

I understand the GPD Win 2 is an older piece of tech, but shouldn’t the gamescope session run at least on par with a desktop session?

Is there any tweaks I can do to fix this?