if you have 8 gigs of physical ram - then no you can ignore the part about 32bit.
I made that suggestion based on the amount of memory usage your system was saying and didn't think you could have many things open apart from the game that could add up to that amount out of 8 gigs.
However. I still recommended installing the game to its own dedicate place.
the Desktop is not a dedicated place, It might work for some things, some of the time, but it isn't really designed for it.
you should try cleaning up your desktop, should probably try clearing some stuff out of appdata as well, etc
If the game worked, and properly so, even once, there should be a Shopsim folder in %localappdata%
if you look in that folder, you should see Saved -> savegames -> settings - you could maybe try deleting that, or maybe try looking around for that "low settings" emergency file (might be on the discord)
Deleting it should honestly do about the same as downloading and placing in the low settings file since its supposed to default to low, but there's been claims sometimes of it having a different result... if it does end up working at anytime from messing with the settings file, Then I suggest very minimally altering the settings in game further than that, mostly, just making sure that the resolution is set up good and in the mode you want, personally I use the exact same resolution as my pc normally uses