sprint gps lag

[lfrp]

i did some research and some people said that they don't experience any lag issues...
i went on a trip and used sprint navigation but it is pretty bad, i passed the exits on the highway and on my tp2 they still showed ahead like for 5 seconds...
so back home i installed telenav, garmin, but even google maps is lagging also... and quick gps is already downloaded.

so i just want to make sure if it could be my phone that i have to replace it or is just all tp2 that dont work well with gps.

i think tp was better with the gps, but tp2 is better with other issues like battery life, and a better screen.