After the newest 1.24 update I noticed much worse performance when character is near the big forests or dense villages located near forests.
The FPS drops a lot (from stable 120 to 70-90) and that by itself shouldn't be a big problem, but there is a noticeable stutter-like effect? Game should run fine at least down to 60 FPS but with those drops the general feeling is much worse.

I've tried many different settings configurations and it seems that the biggest problem is the Anti-aliasing. I've noticed before 1.24 that it has a huge impact on performance, but it wasn't that bad before. And adding up the rework of collisions for trees and nature in general, I would expect to run it better not worse. And it seems that every other option is less impactful on performance than AA.

I did some testing today on community server which is pure vanilla game, results attached on pictures. All settings set to max (Extreme preset)
Forests with MSAA disabled - 120 FPS and even more (despite the limit).
Forests with 2x MSAA - 115-120 FPS.
Forests with 4x MSAA - 110-120 FPS.
Forests with 8x MSAA - 80-95 FPS with weird stutter effect, sometimes may drop even lower.

When I moved to the city (Severograd) I entered with 4x MSAA and it was dropping near bushes from 120 to 100 FPS. In some interiors it can be even 75-85 FPS.
Setting it lower to 2x MSAA helped a little but still it can drop from 120 FPS to 80 FPS without any serious environmental change around the player (but close to trees, bushes or in some interiors like big garages and halls).

Results in pictures are mostly for 2x/4x MSAA as there was no significant difference between those two. I tried to look in all directions, but it was almost the same.
Turning MSAA off completely gives almost stable 120 FPS, 8x is an overkill no matter if there is forest or no, drops a lot and max FPS is around 100-105.