Benq xl2730z flickering

hey guys i have an little isue that when i put my screen on 100 hertz and above and its not only in games
its start flickering and blinking black screen for split secounds thats with the crimson driver
have tryed to change freesync on and off dossent help and im using the DP cable

here is a short vid of the problem

then i tryed to go back to the the latest catalyst drive and it seems to fix it but then perfoming in game started go down hill
is it the driver or is it hardware there couse the problem

gfx sapphire r9 fury x
monitor Benq xl2730z