It will likely get better. However some apps like those an antivirus could do a lot of damage yet let's see what you offered? I see only that you don't want to do what cures it for most.
Bob
My MB520 has gotten terribly slow and gets stuck loading. Besides ditching apps is there anything I can do? I cannot delte the LinkedIn contacts.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic