Unity 2017.2.0f3 Performance issue on canvas updates

I recently switched from 2017.1.0p5 to 2017.2.0f3. While on old version i got 90 FPS on editor, now i got max 30 FPS when i disable all rendered objects except the UI elements.

I have multiple canvas and UI elements on my screen and when i check the profiler, the biggest performance leak comes from "post lateupdate player update canvases". I couldn't find how to fix or improve it. It might cause by new feature which i don't know how to disable or fix it.

I would be grateful if someone knows the solution to it.

many thanks

 

This came up during 2017.2 beta:
https://forum.unity.com/threads/ugui-rendering-updatebatches-performance-regression.496849/

Unfortunately they didn't address the issue for 2017.2.0f3, but said they're going to fix it at a later time via a patch release.

 

Ah ok then, thank you for the info.

 

Is this fixed now in any of the newer patches or in 2017.3? I really need to make sure using Unity's UI isn't going to be a large performance overhead problem.

 

https://forum.unity.com/threads/ugu...s-performance-regression-continuation.501780/

 

Ah ha thank you good sir. So the fix might come through in one of the later versions of 2017.3, which if Im correct would still be a beta release? I'm wondering if I can safely roll back my 2017.2 project to 2017.1 and use that version instead for a while. I suppose I can duplicate the project and test though I really dislike the idea of having two Unity installs so close in version to each other.