[wp-trac] [WordPress Trac] #23382: WordPress admin panel lags

[WordPress Trac]

#23382: WordPress admin panel lags
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 Reporter:  Looimaster       |       Type:  enhancement
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Editor
  Version:                   |   Severity:  normal
 Keywords:                   |
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 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).

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Ticket URL: <http://core.trac.wordpress.org/ticket/23382>
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