Exactly but in steam version this option is no longer available since paradise lost release.

The doors I'm talking about :

http://steamcommunity.com/sharedfiles/filedetails/?id=611958210

It's not possible to pass them since they are already finished closing before you reach them.

Hello, I might be the future speedrunner of this game and I want to discuss a few things.

1. I can confirm that polish non-steam version of the game DOES have glass no matter on what graphics settings.

This issue is caused by this:

https://steamcommunity.com/app/223470/discussions/0/618459405721519774/

2. Milk shop glitch that Idiom has used in his run is very helpful but unfortunately it's not possible to do with your framerate below 40 FPS. When I try to do this glitch when not recording, it does work everytime but when I start recording with OBS with 30fps lock (my hardware won't let me go further) it doesn't work no matter how many times you try.

Also the "anti-thief" doors don't exist on polish version after you steal the milk.