Annoying multitasking button lag

[naos]

Hi,

My Xperia Z2 have annoying delay after touching multitasking button. It is visible lag between touching the button and the application window minimisation animation being kicked off. 

To verify it is not an Android issue in general I checked my Nexus 10 tablet which doesn't have it. I also checked Xperia Z1 Compact in local carrier store and to my surprise it also doesn't have the lag ! So I assume it is a issue in Z2 4.4 software.

In general I found the switching between apps much slower on my Z2 than on Nexus 10 and also on Z1 Compact and HTC One M8 (also checked at local store).

Did anyone else also noticed it ? 

[biistu]

I'll probably try and reset my phone tomorrow. I shouldn't have to do this though. I have only few apps installed and nothing running in the background. As I actually disabled most of the pre installed useless google and sony apps.

[biistu]

No change after doing factory reset with SUS.