What should I do if I upgrade to IE9 to browse the web and it is very slow?

After upgrading to IE9, I found that browsing some websites is really slow. The first two wars have said that it may be a problem with the IE plugin, but I reinstalled the system, using IE8 when it is normal, I feel very stuck with IE9, what should I do?

Generally The browsing failure caused by the IE plug-in has a relatively high probability, but if the plug-in problem is ruled out, it may be caused by the new hardware acceleration of IE9. This can be solved by opening IE9 and clicking the "Gear" button on the right to enter the Internet option. Then in the "Advanced" tab, find the "Accelerated Graphics" column, check "Use software rendering instead of GPU rendering", and then restart IE browser to try it. If the website you can't open contains video, then adjust the codec related settings in the Advanced tab.