Recently switched computers and realized that Google maps is running really slow now. Severe stuttering, longer loading times, etc. The site works normally on chromium based browsers (tested edge, chrome, Vivaldi). Anything I can do?
Old PC had Radeon graphics and new has Intel integrated and Nvidia, if that's relevant.
You didn't mention your OS. If this is Ubuntu with a Firefox install via Snap, do yourself a favor and setup the Flatpak version instead. 200% speed difference, and isolated runtime.
For me, this has been the case for years, at least on Windows and Linux. It happens mostly on Maps, but also on Docs/Sheets, and to a lesser extent on GMail.
I use Firefox, but I have never had the same experience with it as those who claim it's just as fast as Chrome.
Try messing with the hardware acceleration options in the advanced settings. I can't say I've seen any stuttering using just Intel integrated graphics or on my laptop with Intel + Nvidia quadro. If your using Linux there's a good chance it's a Nvidia driver issue. You could open the developer tools side by side with Firefox and Chrome and go to the network or performance tabs and compare side by side.