


Looks good, plays good
Multiple mismatched-size monitors, first physical monitor was used as display but with the resolution options and aspect ratio of my set-primary monitor.
Inputs occasionally dropped or fired late, not constant, just occasional.

When entering a new level, you might drop to 15-30fps for a minute or two before it ramps back up to 60fps. It feels similar to a DXVK shader cache being built.
Had about 20fps in the second scene. I turned off vsync and it shot up to 60fps. In the third scene my fps dropped to 20-30fps. Changing resolution didn't help (30s of tinkering). After turning off "simulated effects auto ajustment" I noticed it was 60fps again. I turned it back on and up the resolution to 1080p again and it stayed that way. I Alt+Tabed out and back and it dropped to 20fps. Then I Alt+Tabed out and back and it remained at 60fps for the entire scene. The fourth scene is also at 60fps (the scenery is very similar though).
I did run into another level running at 30fps once. I exited the level to the "hub" and re-entered the level and it ran at 60fps.
Towards the end, I ran into the 30fps drop again in a map which you can't really restart. It even dropped to 15fps for a few seconds. After a minute or so it returned to normal. The next map also dropped to 30fps, but returned to 60fps after walking a small distance.
The credits also ran at 13fps and didn't skip frames so it was really slow, however it fixed itself when I Alt+Tabbed out for a minute.
Screenshots of the low FPS with DXVK_HUD=frametimes,fps,memory
https://i.imgur.com/b7brGkU.png https://i.imgur.com/kJd1j53.png
Towards the end, it's a fairly difficult platformer game. I had to turn on the Invulnerability in "assist modes" to beat the game. :/
Runs fine
Sometimes input is detected incorrectly or this problem is in the game
average FPS is 50 (playable tho), worst (minimum) result was about 39-41, the best result is, of course, 60.
It is indeed weird for the hardware that I personally use, but everything goes just fine.

Very low fps while playing after the first scene. When in pause menu fps it's normal.
Works perfectly well
Unlike other reports, the game works like a charm for me. A recent version of Proton has probably corrected the problems.
- Constant 120+ fps
- xbox360 controller works well

With Mesa ACO drivers and with launch option "PROTON_USE_D9VK=1 %command%", the performance is still bad (considering the low requirements of the game). Not much difference with any game settings or resolutions, framerate is at best around 50fps.

Game runs but with poor performance, around 45fps at 2560x1600 resolution with Proton 4.11-1. Performance does not appear to scale with resolutions. Nintendo Switch Pro Controller is not detected.

Runs, but input is laggy and imprecise to the point that it's not comfortably playable.

Runs out of the box but with poor performance 35ish FPS at 1080p, with vsync disabled and frameskip 0 it is boarderline tolerable. Controller input is broken, usually stuck in a direction and sometimes does not respond at all except in menues (people have reported similar issues on windows too though).

Stopped crashing after setting PROTON_USE_WINED3D, but FPS is too low to play a fast-paced game, specially considering the minimum specs. The controller seems stuck on walking to the right.