Update to WordPress Version 4.6

Hi jksadmgi,
I am sorry to hear that, but can not reproduce an error right now.
Which part of the admin panel is slow? Everything or only AA pages?

If you are familiar with JavaScript, could you follow https://codex.www.ads-software.com/Using_Your_Browser_to_Diagnose_JavaScript_Errors and check if there is a JavaScript error causing this?

Thanks
Thomas