Hi asta,
I'm sorry that you are having problems with your game. It could be due to a number of things but something that caught my eye immediately after reading your post is that you've got 237 .package files. This
is bad, because having over 200 .package files will make the game lag. The game does not seem to care about the size of the files but does care about their total count. I recommend you to merge .packages that you know you won't have to remove because they need updating or are bad CC. I wouldn't advise merging your mods because those need updating after new game patches in most cases.
To do this, you need the .package file editing program
s3pe (note (for Windows): this is a .Net4 build so if you haven't got the latest version, please google it and download the update from the Microsoft site). Finally, a complete step-by-step tutorial on how to merge package files can be found
here at Club Crimsyn. Some steps may be outdated with newer versions of s3pe so don't panic if something goes wrong or not as shown. As always, make sure to keep a backup of the original .package files (those that you are going to merge) elsewhere (
not in the Mods/Packages folder) in case you need to re-merge them. You cannot un-merge combined .packages so be careful.