I have been using KIS for more than 10 years, and on this pc for 3 yrs. Not a single problem.  My 3 yrs of KIS expired. And I switched to Plus due to additional VPN service. Once I switched to Plus, i don't notice anything right away. But it is slowing down my computer more and more everyday. Now, it gets pretty obvious.  e.g. when I open youtube.com in chrome, the webpage stuck for about 2 seconds, then all the content shows. Even more ridiculous, when I open task manager, it also stu