The grind is over. 1:35 is definitely possible though.

Note: You can save FPS by hiding your partner. That is why I hide the partners. It is especially notable at the door immediately after Eggman and makes controlling Shadow easier

Potential Improvements:

• rail grind at the start is not as fast as it could be
• jumping off the pulley is not as fast as it could be
• I did NOT get the door-tech momentum retain on the door where you fall down after the pulley
• I got a slow rail after the 2nd generator, and did not make the full jump across the triangle jump section (had to grab bar and jumpdash again)