Animation Properties dropdown hover animation becomes extremely slow when a lot of Properties are added

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Create a new Cube GameObject (GameObject > 3D Object > Cube)
3. Select the newly added Cube GameObject in the Hierarchy window
4. Open the Animation window (Window > Animation > Animation)
5. Create a new Animation
6. Click the "Add Property" button and add all the properties
7. Hover over all the Properties dropdown buttons at varying cursor speeds
8. Observe the Property dropdown hover animations

Actual results: The hover animation is extremely slow, in most cases the hover stays on the Property that the mouse cursor is no longer hovering over

Expected results: The hover animation does not stay on Properties that the mouse is no longer hovering over

Reproducible with versions: 6000.0.69f1, 6000.3.10f1, 6000.4.0b11, 6000.5.0a8

Tested on (OS): MacOS Silicon Tahoe 26.2, Ubuntu 24.04