When i hold shift or alt, mouse curser move really slow. how to fix it?

Hello- please run the SystemInfo command in Rhino and copy/paste the results here.

-Pascal

Windows 11 (10.0.22621 SR0.0) or greater (Physical RAM: 7.4Gb)

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce GTX 1660 SUPER (NVidia) Memory: 6GB, Driver date: 1-25-2021 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 457.85
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port #0

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 1-25-2021
Driver Version: 27.21.14.5785
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 6 GB

Your video drivers are from 2021 and “7.4 GB” of RAM is not really adequate for Rhino on Windows 11, not to actually do any work. And where’s the rest of SystemInfo?

mm do i need to change video driver and ram?
i just tested with tooltip option and i figuered that it happens when i turn on any of Distance,Pont,relative point and angle , command prompt. osnap and autosuppress is fine with its a mystery

Hello- thanks, please post the entire SystemInfo report.

-Pascal