Nobody got that probe ?

I guys,
I'm new on this forum and I got a problem
Sorry for my bad english...

When I play lfs I need to turn on vsync because my screen is 60hz so if i don't turn it on i got some tearing... (you know like if frames were cut in some horizontal way)

All of this is good.... never a drop of fps under 60...

BUT! When I use track ir and i move my head, those tearing come back!! and that's really anoying... because my Vsync is turned on so... is it a track ir problem??

Thanks for help
Mike