TomTom Navigator problems

[Osteo]

Ok, I know my gps works as google maps runs flawlessly but I'm having serious trouble with TomTom.

I've used 7.910.9185, 7.915.9196, and 7.9189 with horrendous results; too laggy to use (tells me to turn well after I've made the turn) and I've turned off all POI's (which has been reported to make it lag) with no benefit.

Has anyone found a version that runs well or is it just my Imagio? Any help would be appreciated. Thanks!