I've been playing it on and off since launch and never got less than 60fps 😅, but generally around 120fps as I had a 3d vision monitor(that didn't work so well in source games though iirc).
didn't get as far as seeing a framerate in arch, couldn't work out why it wasn't working and gave up 😅
haven't checked my framerate in Ubuntu but felt like about 144 or something like that
Before 1967, the unit was called "degrees Kelvin" and was written as "°K", so you still might see "°K" in old publications or text written by people who never heard of the newer convention.
Its used both 卐 or 卍 ways in different non-nazi examples: https://en.wikipedia.org/wiki/Swastika
Plenty of modern nazis don't know how to draw it though, so you can never be sure...