When I'm driving with the phone is a dashboard mount, everything else on the phone is super slow and laggy. To the point where if something doesn't work via voice control, I'm afraid to do it manually like when stopped at a red light, in case I can't switch back to navigation before I need to make a turn. Google Maps on OnePlus 9 w sd888.
Is there in existence yet a phone that's fast enough for task switching while navigating? Is it just Google maps being a resource hog? Is there a better app?
I've a Samsung A71, SnapDragon 730, certainly much less capable than your phone, and I can switch apps while using google maps without any performance hit. I usually drive/ride with Waze though.
Does it happen only when it's in your car, or anytime you use google maps? Do you have android auto?
Do you have many map details switched on? (3d buildings, traffic, air quality, etc)
Have you tried it right after rebooting the phone?