clear your internet cookies, history, and temporary files from all the porn you look at and i am sure it will be faster
After doing that, defragment your computer. Defragmenting should be done on a regular basis especially if you do a lot of downloading of files/software.
If you are going to use a reg cleaner, create a restore point.
Another option is to run msconfig & turn off all the unnecessary programs that fire up under startup everytime you reboot.
If you are running Norton Antivirus, get rid of it & run Avast
(it's free). Norton is a CPU hog & will slow up your laptop.