Can't seem to get the video to work here, but there's a clip of the fast EA in the Discord strat channel!
Wow, this is amazing! Didn't expect to see something like a TAS of the game so soon.
There is a faster way to do Elevator Action, courtesy of Arconifer. You drop the platform until it nearly touches the spikes, then start it rising again. By rolling off onto the platform and doing a series of small jumps, you can keep it low enough to grab the key and jump back on. It's super difficult to do RTA, but I'm sure you wouldn't have that problem!
For the jumps out of the pipes - is that a frame perfect input? Magnus Rides Again is a bit of a nightmare with how he spawns in so late.
Nice to know about the acceleration - would explain some inconsistencies I've seen in my splits.
I'm no expert on TAS, so I don't know if physics fixes are considered OK, but how consequential is the change in acceleration for a typical run? In my experience, the framerate rarely drops much below 60 fps, and I can't think of any tricks that are precise enough to need that level of consistency.
Good job again on the run. We have a Discord (work in progress, think I might have seen you there already) if you're interested in keeping up with developments: https://discord.gg/C4vewpbVgA