Another time save is skipping the animation for the main power fuse replacement:

It's currently unknown what causes the glitch making it difficult to recreate it but it's a mix of spam clicking and replacing the fuse immediately when given the option. Sometimes this will bypass the animation, allowing you can instantly back out of the breaker. If I find out how to consistently recreate it, I'll update you!

Thanks for opening this! Never been one for speed running but I love this demo too much!