Moving with the mouse, stuttering graphics, high lag (maybe 400+ ms).Moving with keyboard, very fluid and good graphics and slightly increased lag when firing (but still pretty low, maybe 150ms).Sanding still, good graphics and very low lag when firing a gun (On my DChromebook (through a USB Ethernet port) I get this (tested in Destiny 2): I can run Stadia on a high end laptop with no problems (after disabling mouse acceleration). I think you are right about the the problem that some people are seeing with desktop gaming is the way that the Stadia client is running under Chrome. This is my concern because I want Stadia also to play games in desktop with keyboard and mouse, not only with Stadia very interesting post. I think that google has to provide a better client for stadia in desktop environments and don't to be the users whose has to deal with hw acceleration flags, mouse pointer lock and external tool setups and whatever. I think that is because the NVIDIA has a desktop client that can deal with GPU options and behaviors to make a better experience, I don't know exactly but I think that the client (Chrome) is the main problem because is not optimized yet. I don't want to make silly comparisons and controversy about game streaming services, but, I'm trying in my Geforce Now account with the same game (Destiny 2) and same net conditions and the mouse works smooth and this problems are inexistents. (This is the better option for me, no input lag and very low mouse stuttering (but still there), is sad that this option cannot be reproduced in MacOS and Linux) Go to my GPU options (NVIDIA Control Panel) and disable some options as vsync, anisotropic filter, antialiasing and options to priorize the performance over energy save.Go to chrome://flags Mouse Pointer Lock (this option fix the mouse input lag a little).

Go to chrome://flags and switch off Hardware acceleration to video encode/decode (this option fix the mouse input lag a little but the frame rate sometimes is worse).Disable mouse acceleration in your OS (This options helps a little too but I think that with the following option is also the same in this context).Go to chrome://flags and reset defaults values (this option is the worst because there are input lag and stuttering clearly).I'm trying this things to improve the mouse input lag and stuttering. I want to share my concern about the mouse performance on Stadia. Disabling VSYNC improves a lot, try first this:

Macos mouse acceleration