CarPlay issues-Alpine Apple Carplay gets laggy, eventually disconnects with error

My Apple CarPlay gets laggy after some time while connected to the car. Touch inputs will take 5-10 seconds to be recognized and maps will stop updating the view. Eventually it will disconnect with an error "Unfortunately, com.ds.connectivity has stopped". When I notice the lag, toggling back to Alpine then back to CarPlay will get it to work again. I believe it has something to do with the maps, either Google or Apple, because if I leave an audio app on the screen it doesn't seem to happen. Any suggestions? I've tried power cycling everything, resetting carplay settings in both the Alpine and iPhone, updating firmware for the Alpine and IOS on my phone. Next step is to remove Google Maps and see what happens. Funny part is it only happens with the Alpine ILX407 in my Subaru, not the W650 in my pickup. Thanks!