F.E.A.R. slowdown

[dlove67]

Compatibility Report

• Name of the game with compatibility issues: F.E.A.R.
• Steam AppID of the game: 21090

System Information

• GPU: RX Vega
• Driver/LLVM version: Mesa 18.3.0-Devel LLVM8.0
• Kernel version: 4.18.0
• Link to full system information report as Gist: https://gist.github.com/dlove67/2420b2af8ff9049f6a9afe4d2db23b53
• Proton version: Proton 3.7-6

I confirm:

• [X ] that I haven't found an existing compatibility report for this game.
• [X ] that I have checked whether there are updates for my system available.

steam-21090.log

Symptoms

When playing the game and there are particle effects or bodies ragdoll, the FPS will drop to less than 1 fps at times. I found this is particularly bad at a location in the level "Bad Water".

Reproduction

I have created a save game at and uploaded to google drive here: https://drive.google.com/open?id=1tO5e6CvkyUnQ0i1uowVCRxazDvAoU3PM (the save file is "Bad Water" at time 1:41:54)

You can also see the issue when doing the benchmark, to a much more minor degree, when the soldiers are shooting at each other, framerate drops on my system from around 200+ fps to about 20-30fps.

[kisak-valve]

Hello @dlove67, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to #481 (comment).