Very Slow Internet in IE, other browsers fine
One of our teachers installed something onto their laptop, and got the usual amount of crapware which goes with some of these free installers. I have removed all the additional applications (from Control Panel and then confirmed by browsing C:\Program Files and C:\Users\username\AppData), the IE toolbars, etc and returned the home page and search engine settings back to where they should be; from what I can see, all traces of the things which had been installed have gone, BUT... Internet Explorer is running painfully slowly. The pages load completely, however the little blue circle icon keeps spinning and IE pretty much crashes. Chrome is unaffected.
Other than a full rebuild of the laptop (which I really don't want to do, as this person has all sorts of local customisations), what can I do to restore IE to its normal performance?