Unreal Engine 4.23 Preview

It seems that in my projects (in heavy scenes, mostly static, just with many tris) performance of 4.23preview4 is significantly worse than in 4.22. Is this something that is still worked on? Is there any particular element (in materials?) that I can look at for a cause/resolution? As it is now, it looks to be a bit challenging to migrate the project, since we can not afford to lose the performance…

Thanks for any tips! (and I’d be happy to provide more information, of course)

4.22:
Framerate_422_cut.jpg

4.23preview4
Framerate_423_cut.jpg