Ah I see. There may still be minor differences between the QlikView client and the Ajax client. And worse, the Ajax client may show slightly different object layouts depending on which browser you are using. Overall they are 99% compatible though.
You can do two things:
Test in different browsers and see whether for example Google Chrome does a better tjob than for exmaple IE or Edge.
Switch to the IE Plugin to get an 100% identical layout.
A HTML rendering may forever be different from a Windows rendering. That is at least until Windows itself switches to pure web technology for its user interface
i have try,browsers is not the question point, Chrome still not correct layout. IE plugin mode is looks good,it show the same with desk version.
just want know, if there some way to make it good at ajax mode. as you said, ajax display have some issue,like layout shifting, chart font definition, may be color distortion. but i know upgrade is termination, maybe these question never be solve.