That's not necessarily true; jQuery does all kinds of performance tricks that are far too complicated to do in straight JS code.
Re:Mobile development with HTML5
by HardlySarcastic on Thursday August 25, 2011 @11:11PM
(#2927224)
This is exactly why I run my text editors in Windows 95 still. There is far less code than current versions of windows and I find a huge performance hit when using these newer versions.
This is because almost invariably the larger the JS is, the more code you're likely executing.