Stuck at 59fps & 119fps after new updates

So, i just got a weird bug after i update my Rog phone 2 into the latest version.. everytime i play a game, the fps will stuck at 59 and 119 fps but completely find when i turn the refresh rate into 90fps.. i don't why but it's actually happen really random.. sometime i got a steady 60fps on game and then the next day the fps will stuck at 59/119 again.. but unfortunately i cannot reach 120 whatsoever.
This is the screenshot
You can see that the frame rate is not stable. I i think the problem is the vsync on the screen is messed up because the update?
Here's another screen shot
Can anyone find it and fixed it immediately ? Yeah it's a minor thing but it's really make me uncomfortable because i got a lot of micro stutter that will ruined my gameplay.. and it's never happen before i update.
Thank you...
Comments
Can any mod reply at least ?
I think you guys should fix the vsync problem in the next update
@Titan_ASUS @Anders_ASUS @CH_ASUS Sorry for obligatory tag
What.
Runs fine for me at 120 Hz.
Runs like garbage at 60 Hz. Which is what most games are now. Since they took away 120 FPS trick. (Never gonna let that go)
Me too.. i got for like normal refresh rate before update and suddenly after update.. my refresh rate decreased for no reason
No one (especially mod) response
:O
Any response, please ?
X MODE OFF
FPS FLUCTUATES BETWEEN 114 AND 116
X MODE ON ON
FPS FLUCTUATES BETWEEN 119.8 TO 120.043
@Anders_ASUS @LP_ASUS @CH_ASUS @Gustav_ASUS
I couldn't record the screen at 120hz as Asus's screen recorder only records at 90hz
Maybe this update is reducing the performance to run at 115 fps to save battery
NOTE : SO I DECIDED TO RESTART THE DEVICE ONCE AND TEST IT
RESULT
X MODE OFF
RUNS AT 119.8 TO 120.06