TomTom Go on iOS lagging terribly. 5 to 6 kms
I have searched and found that I am not the only one.
I am on iOS 13,5,1, and TomTom Go 2,3, which should be the newest
https://discussions.tomtom.com/en/discussion/1021044/go-mobile-for-iphone-lagging-with-gps-positioning/p3