Recent Unity versions are very sluggish

Unity Engine
,
1

Hi. I am running Unity on Macbook Pro (2017, 15 inch). Recent Unity versions of 2020 and 2021 have been quite sluggish. It seems as if frames are dropping. This happens only in the Editor. They run fine when build is exported on Android or iOS.

I have faced this problem on the following versions:

  1. Unity 2020.3.19
  2. Unity 2020.3.20
  3. Unity 2021.1.22
  4. Unity 2021.1.23
  5. Unity 2021.1.24

Has anybody else faced it?

Please see what I am talking about:

Correct Behavior on older versions:

70l9bz

Jerky Behavior on newer versions:

vwyywd

2

Hi,

This problem is discussed in this thread: 2021.1.22 + 2020.3.19 huge performance issues affecting mac

This is the issue tracker for it: https://issuetracker.unity3d.com/is…-when-changing-gameobject-transforms-position

You can see that the Fix is in review for the versions you mention in your post.

For now I’d suggest rolling back to 2020.3.18f1 until the bug gets fixed (likely in 2020.3.21f1 but that’s only a guess).

1 Like
3

Thanks.