Reproduction steps:
1. Open the attached “IN-105806.zip” project
2. Make sure a Secondary Display is connected to the PC
3. Build and Run the project for Windows Standalone (File > Build and Run)
4. Open the Player on the Main Display and observe the FPS
5. Press A or D on the keyboard to move the Cube and observe its movement
6. Move the Player to the Secondary Display and observe the FPS
7. Press A or D on the keyboard to move the Cube and observe its movement

Expected result: FPS is ~15, and Cube movement on both displays is similar
Actual result: On the Secondary Display, the FPS is at 61 (similar to display refresh rate), and the Cube movement is smoother

Reproducible with: 2022.1.0a1, 2022.3.63f1, 6000.0.51f1, 6000.1.9f1, 6000.2.0b7, 6000.3.0a1

Reproducible on: Windows 11 Pro (23H2), Windows 11 Pro (24H2)
Not reproducible on: Windows 10 Pro (22H2) + NVIDIA GeForce GTX 680 (Driver version: 475.14)

Notes:
- Alt+Enter to enter full-screen mode can fix the issue, but if you return to windowed mode, the issue reproduces again
- Reproduces on both DX11 and DX12, but not on Vulkan
- The script sets QualitySettings.vSyncCount = 1 and limits the frame rate to ~15 FPS using Thread.Sleep
- More info in the Internal Notes