Recently I have been having an issue with some websites opening slowly, while others open quickly on all 3 browsers( edge, chrome, and Firefox). During this time chrome started opening in black screen, I corrected black screen problem by unpinning from taskbar and adding disable--gpu to shortcut. None of the other computers in the house have this issue on those sites. Checked for malware and adware. Malwarebytes and ADW Cleaner came up clean. Ran scan using Trend Micro Pro, came up clean. I cleared DNS cache and rebooted router, also had ISP check router, they said it was working perfectly. I can ping the sites using domain name and ip address, pings were fine.
This computer goes through switch while others are on wifi, so I connected this one to wifi and still had the same issue. Tried directly plugging into the router, it seemed somewhat faster but still took a while. I did a system file check which found no issues and all programs open fast. Outlook has been slower to connect to MS exchange at the same time as the internet issue. Internet is 50Mbps, Computer is 256GB SSD with 2 TB HD, 32GB memory so it should not be slow at all.
I would have expected malware but it's not the case. Running out of things to try.