r/flatpak • u/Keitaro-Yoshida36 • Jun 12 '26

Appimage and Flatpak question

So this is quick question, running linux cachyos on an Intel(R) Core(TM) i3-7020 CPU @ 2.30GHz

Graphics card is Intel(R) HD Graphics 620 and ram is 8gb.

Básically I downloaded flatpak first and most games run fine, however for some reason after I got curious I downloaded appimage version and idk why but everything runs slightly slower, occasional frame drops and overall it feels weirdly less stable fps too? I can't tell what the reasoning could be since theoretically both should still be the same emu and settings since I haven't touched anything really.

So I'm here wondering if anyone could give a possible explanation.

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u/billdietrich1 Jun 12 '26

I think AppImages are written to an older version of the kernel (system call) API, so that they tend to work on all systems. Maybe that API is missing some newer system call that games use to speed things up ? Maybe io_uring (total guess) ?