New patch contains upgraded Unity engine from 2018 to 2021. Also upgraded tanks have more complex geometry and more details. Better quality = usually worse performance. To solve this situation, we designed Occlusion Culling technique, which can be enabled / disabled from menu (graphics settings). Occlusion Culling offloads the CPU workload at the expense of the power of the graphics card. So game should work better when you have low-medium budget CPU and good graphics card (most of players), otherwise it can cause performance drops and should be disabled.

Originally posted by DeGenerals PZ:

New patch contains upgraded Unity engine from 2018 to 2021. Also upgraded tanks have more complex geometry and more details. Better quality = usually worse performance. To solve this situation, we designed Occlusion Culling technique, which can be enabled / disabled from menu (graphics settings). Occlusion Culling offloads the CPU workload at the expense of the power of the graphics card. So game should work better when you have low-medium budget CPU and good graphics card (most of players), otherwise it can cause performance drops and should be disabled.

you mean "Ambient Occlusion" right ?

No, this option (15 second):

https://www.youtube.com/watch?v=vyWu8_EM0wY&t=16s

Originally posted by DeGenerals PZ:

No, this option (15 second):

https://www.youtube.com/watch?v=vyWu8_EM0wY&t=16s

Got it.
My game set to "performance",it turn on. Compare turn off FPS lower than turn on. but I sorry to say it not good enough performance (especially museum area) I hope optimize better than in future and thank you work hard for game.