Make mouse speed not dependent on monitor resolution

I have a 14in laptop monitor thats 2560x1600 and a 24in 1920x1080p external monitor. My mouse is noticeably slower on the laptop monitor, as in the mouse has to travel a longer physical distance to move the cursor from one end of the monitor to the other, compared to the 24in external monitor. I already disabled mouse acceleration but could not find a solution for this issue.