It took me several levels to realize that Enclave is running way faster than it was obviously intended to. While I'm glad that reducing mouse speed in the settings was an easy solution, I've never seen a game where mouse speed is responsible for the overall speed of character and enemies' movement. I've always associated mouse speed being tied in only with look/turning speed. A pretty strange experience.

Now what's odd is that mouse speed does not equal game speed anymore. Seems to have just worked that way temporarily.

But I've found a solution on gamefaqs in terms of Enclave running too fast:

My game speed would increase whenever I was turning with my mouse. It would also make it so jumping would end immediately.

I found that setting my mouse polling speed from 1000 Hz to 125 Hz fixed the issue completely.

Source: pcgamingwiki / wiki / Enclave

I've tried both of these solutions. I don't know what that console command is supposed to do other than tell you what CPU's update frequency, but it had no effect. And the polling rate solution does prevent things from running super fast, but now my character wants to walk when mouse the mouse instead. And the jump issue remains the same.