It works though? I read something that you need to set this value for Star Citizen here (Maybe it will help performance?):
sudo sysctl -w vm.max_map_count=655300
I also found this here, but I am not sure where to set these settings as I am not very familiar with Linux, could you maybe tell me where to set them if you figure it out?
Recommended Settings -
nvapi & nvapi64 = disabled
DXVK_HUD = 1
__GL_SHADER_DISK_CACHE = true *
__GL_SHADER_DISK_CACHE_PATH = /path/to/shader/location **
__GL_SHADER_DISK_CACHE_SKIP_CLEANUP = true
* Building shaders for the first time will induce a lot of stuttering as they are compiled by the GPU, Its best to generally do everything and go everywhere to build as many shaders. Once they are built the stuttering will subside.
** Recommend setting a path to your home location for permissions and keep
it in a separate directory to other shaders as they will be overridden
Other Notes -
Playing in windowed mode or with multiple monitors active can reduce frames and causes movement stuttering (Recommend playing in windowed mode in case of GPU stall)
Ubuntu distro has an issue with the CIG launcher and will crash frequently when starting up. Keep retying until it launches
Other 3D accelerated programs like Firefox many reduce fps when playing an active video.
For Nvidia users it recommended to install driver 418 or above.
Finally (just to be absolutely certain) you're hardware is up to spec to play the game correct?
My notes from reading those comments is that if it's the first time you're running it, it will stutter and be laggy building the shaders (see the note under recommended settings above) so maybe if it was your first time running it in that bottle that's what it was doing?