Lol I fucked up and fat fingered my split key (F3) at 1:15 in this video, so I overlayed a timer on this video using my editing software. Luckily this run doesn't involve any save glitching so there were no load times to remove from the time.

Better execution at the start results in one fewer regular jump, saving about a second. A faster route in the room with the elevator mainframe saved another 2.5 seconds compared to last run.

I think a perfect run would be sub 2m40s.