Poor performance when moving many Animator states at the same time

How to reproduce:
1. Create a new Unity project
2. In the Project window, right-click -> Create -> Animation -> Animator Controller
3. Open the created Asset
4. Create many states (~35)
5. Select all states and move them around

Expected results: The movement is not too laggy
Actual results: The movement is extremely laggy

Reproducible with: 6000.0.65f1, 6000.3.3f1, 6000.4.0b3, 6000.5.0a3

Reproducible on: Ubuntu 24
Not reproducible on: macOS Tahoe 26

Note: Tested on a very performant PC