Well, I tried to uninstall F4SE and install it back but manually, same with sim settlements 2 and addons but it didnt help. I've noticed that 2x2 commercial plots (with which I have a problem) are working slowly e.g. building takes more time than for other plots, plot status window (the one on the middle left side) stucks on screen longer than usual and i often cant open option menu for plot because i have a notification on top left side "plot is finishing process"(or something like that). I guess it is some kind of a script lag, so i also tried to uninstall some heavly scripted mods like PANPC but with same result. I have highly modified game (about 140 mods) but i havent got any problems until updating ss2. I guess the last thing i can try is starting new savegame but i really want to avoid it because i dont want to lose my progress on my current save. Do you guys have any other clues what might cause this problem?