That slowdown seems to affect Chrome browsers. I have 5 computers, 4 running Windows 10 and one running Windows 7 and I have many Chrome browsers installed like Opera, Iron, Cent, Dragon and it takes about 5x longer to start and load pages with all of them ex: Iron opens in 1-2 seconds normally now it takes about 10 seconds to get it to open and to load pages. The problem comes from File System Shield because when disabled they open really fast. It doesn't seem to affect Firefox or Edge.