Menu loading extremely slowly/not responding

[G7theConquistido 0]

This game has been giving me tons of issues lately. First cities.exe has stopped working, which I think I fixed by getting rid of some assets and mods, so that my subscribed items are at about 980 all together,  but now my menu seems to not respond when I click any options, whether it be load game,  content manager,  anything.  The cursor turns into the loading circle, or the options like load game won't even be highlighted when I hover the cursor over them, and then I restart my computer but still have the same issue. Another weird thing is sometimes when I restart it says steam is updating, but never does and I'll sometimes even be logged out of my steam account and have to agree to terms of service when I try to reload cities:skylines. My system drivers are nvidia GeForce 840m, which it is set to run with,  and Intel inside core i7. Sorry, I don't know much about computers when it comes to listing what I have.  My laptop is an asus model number Q551L laptop. It's becoming extremely frustrating with having these issues when this game is built around mods and assets, but they cause more time trying to solve issues than actually playing the game. It's very fun and addicting when it works with mods and assets, but  that's not often. 

[G7theConquistido 0]

Also, -force-d3d9 just gives me a black screen, so that doesn't help,  and I don't think a clean reinstall will help this either and I don't feel like risking losing all of my mods and assets and have it maybe not even work.