I know I stumbled in some parts and this can be quicker but considering the pinball is passed at first try this is my best time so far, and I don't plan to improve it anytime soon (yes, I probably should get a job).
This may interest you. I found true speedrun skip at the start of level 2. You can use blue stairs as hops to propel ball into 3 hops on the right side of the screw. This way you can cut around 15s from your run
I found big one on Level 2. Idea is to use blue stairs as hops which propel ball into 1 of 3 little hops on the righ side of the screw. Check video on my channel
I had a trick I did on the brown rocker table for ss1. Put the ball in the top left corner of the rocker table, then jolt the table the other way and you can throw the ball to the ramp at the top of the stairs. This was 30 years ago, but the success rate was around 30%. I want to see some serious competition on this game :)