I have an older computer that I use for some simple games. Its I5-7400, GTX-1050, 12GB memory, and an SSD - not new by any standards, but most of the games I’m playing are a decade old or more. I switched to Linux Mint today, since I don’t want to use Windows 11, but the performance on Mint is terrible compared to Windows 10. For example, in Portal 2’s native Linux version, I get like 10 fps in the title screen. War Thunder doesn’t even launch. The drivers are set to Nvidia’s proprietary drivers via the GUI. Am I missing something? I’d really rather not switch back to Windows.
Edit: VulkanInfo is saying, “ERROR: [Loader Message] Code 0: loader_scanned_icd_add: Could not get ‘vkCreateInstance’ via…”
It also seems to only be showing my CPU, not gpu? Not certain, since I don’t unstand a lot of the details, but it says, “deviceType = PHYSICAL_DEVICE_TYPE_CPU”.
Edit 2: turning off secureboot fixed it.


Check to make sure you are using the ‘recommended’ video driver for your system according to the driver manager. Also, check to make sure that you have installed all available updates through the updates manager.
It sounds like you are using Steam, so I would recommend using the install directly from the official site instead of the flatpak, if that’s what you’ve done.