Welcome to the forum hupp3l
Make sure you clean out your cache first. Go to the top of the browser*Tools*Internet Options*Delete Files*Including Offline Content*OK*OK*Test. And with this link, you will be testing after clicking, so clean out cache before clicking.
Try the 12k test.
Are you virus and spyware free?
Have you cleaned out your registry?
Have you defragged your hard drive?