Sorry to hear, if you want to discuss further, ping me.
switching varies tabs on top are not very responsive. The lag is very annoying, and sometimes u don't even know it received the click or not. At least in a browser, there's some sort of indicator that it is working, or going to that page.
As an indicator, we put in a "fade in - fade out" visual effect. Are you not seeing that?
I don't recall seeing that. Already uninstalled.
We will look to fix this in a dot release this summer.