Touch screen problem, I reproduced! Twice! Problem exists on Oreo!

[ztcontrol]

i'm from china,

sorry about my english.

so many people face this problem, 

the touch screen seems not so funtional,

i find it's a VERY LARGE LAG in fact

in the vedio below, at 24sec, you can see 

a short line i painted is not displayed immediately

when i paint next row, it displayed

https://youtu.be/l9vgGZeJj1Q

[Uliwooly]

@ztcontrol

Could you record the videos I've requested? 

[ztcontrol]

Message 19 of 21 is the video, isn't it?

[najodleglejszy]

@ztcontroldoes it affect your regular usage in any way, for example during texting, playing games or browsing the web? because while a similar thing happens for me, the touchscreen works flawlessly outside of the test.

[ztcontrol]

najodleglejszy

excuse me,how to @ someone here?

answer is Yes,

when scrolling screen,typing, playing music game ,almost everywhere i need to touch fast

[gagge1000]

Yes you are right. I noticed the same. And the problem has become worse after oreo update. Does anyone know is the same problem persists in xz1 or not?

[ztcontrol]

i have returned the 2nd one, bye guys, bye sony.