Can you type into your "search" box; ( that's START icon lower left of screen, in the taskbar, then click once in the Search box)
Type "internet explorer".
At the top of the list that appears, there will be 2 versions of I.E.
Click on the second one (no add ons). see how it performs on the web.
If it works well, then you have to remove the "Add-ons" from your browsers, one by one till I.E works well again. (Maybe easier to delete
Chrome and download it again.)
Have you done maintenance on this pc? That is keeping the web "clutter" down.
Try downloading the free program;
http://download.cnet.com/ccleaner/
Click on the Green button on that page to download.
Run the program using the
Cleaner and
registry options.
Use the program as it installs, don't tick any of the empty boxes that show on the left.
You can use this program every time you use the pc, it's reliable and does a great job at cleaning up the files and junk you don't need. If any doubt, read the reviews, you won't find a poor one !
Also probably a good idea to run a defragmentation program, the built in one is fair, or the one by Auslogics is my choice.
http://download.cnet.com/Auslogics-Disk-Defrag/3000-2094_4-10567503.html