id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
23382	WordPress admin panel lags	Looimaster		"I'm using Windows 7, brand-new laptop with i7 processor, 8GB RAM and 1080p resolution.

I have created a post with 15 1920x1080 images in it and a lot of content (25000 characters). Results:

=== CHROME & CHROME CANARY ===
It's far from being usable at all. It lags that much that cursor doesn't even change from ""default"" to ""pointer"" when I hover over ""Publish"" button. Even switching to WordPress Admin Panel tab takes 5 seconds. Textareas are not resizable because lags prevent my mouse cursor from doing anything. Actually, entire Admin Panel lags, all these Drag&Drop widgets etc.

=== FIREFOX ===
A bit better than Chrome, everything lags but at least I can resize textareas and after 10 seconds it becomes usable. Nonetheless, it's not as smooth as other websites.

=== IE10 ===
Excellent. Not even a single slowdown!

=== SAFARI ===
Very close to IE10.

I think that WordPress Admin Panel is stuffed with heavy Javascript. Maybe it's worth taking a look at that. The module that seems to be the heaviest is TinyMCE - when this appears then lags appear as well. Chrome works fine everywhere except WP Admin Panel.

Good luck guys and thank you for your hard work during WordPress development :) My complaints are here only to make it better. I can live with these lags (since I can do it in IE10) but those are just my thoughts (many people use Chrome)."	enhancement	new	normal	Awaiting Review	Editor		normal