People help I can not deal with mouse sensitivity

actually I played on PC with a sensitivity of 21 and a dpi of 1200 that's straight perfect my Sens so far . I bought a laptop a good more powerful your PC . Well, here connecting the mouse and exposing the same settings the mouse sensitivity is completely different from the one that was on the PC but still configured . On a PC Monique is like this :

Monitor LG W1943SS

Screen size (inch): 18.5
Display resolution: 1366x768
Response time (MS): 5

now : Laptop Gaming HP Pavilion 15-cx0171ur black
and here's it monitor ;
Screen size
15.6
Screen resolution
1920x1080
The name of the format
FullHD
Pixel density
141 PPI
I don't know at all what to do already set up the mouse in Windows was turned off, and included acceleration , he tried to adjust sensitivity but the same can't find Eton on the laptop and the problem was on two laptops the settings on the card poked all Internet clambered . never found a solution can anyone here is going to help or faced with similar ,I would be very grateful if you help namukasa already screwed can't play it.
for some reason it seems that the differences of monitors, well, it's just my guess .