SimCity plays best up to 1080p resolutions; it does not play well in 4k, nor with multiple monitor setups. You might try forcing it to run at 60 fps and see if that helps with the lag. Otherwise, I would set it to 1920x1080 resolution and max out the settings. You won't get any better display.
tbh, I'm surprised you were able to get it to display in any 4k settings at all. So, kudos to your troubleshooting.![Standard smile]( "Standard smile")
tbh, I'm surprised you were able to get it to display in any 4k settings at all. So, kudos to your troubleshooting.
