Easy to disable updates in the home version as well:

http://www.thewindowsclub.com/turn-o...-in-windows-10

As for framerate issues, I would update your video card drivers and verify that your graphics card is working.

framerate issues fixed, for me at least, from a post in the bug forum:

not sure what wizardry that is but letting the game make a new eqclient.ini worked

Yep, after a fresh install of EQ I still had the framerate issues as well. The only fix I could find was to delete the eqclient.ini file as well. It was annoying to have to redo all of my UI/Hotkey stuff but that lag was terrible so well worth it.

Probably a corruption issue - the same thing can happen to log files. Probably something to do with the fact that the client is an old piece of software which was originally written for Windows 98, and therefore susceptible to corrupting files that it writes to in modern file systems. With corrupt log files, it will still write to the file but it will cause the client to hiccup with each new successful write, creating the illusion of lowered framerate - theoretically it's not really a framerate issue, but it presents as one.

I've never had a corrupt eqclient.ini, but what I'd do is just create a new file, copy and paste the text from the old corrupt file into the new file, and then save that as eqclient.ini so that I keep all my client settings.

This worked for me as well except if I even open the eqclient.ini without making any changes or anything it will lag again, so I can't copy paste from my old file, also I can't seem to plug anymore when I zone

There must be another way, anyone? On a good laptop with Windows 10 and great GeForce gtx 965m graphic card. I read something about the new Windows 10 update made it very choppy for other people as well

Windows 10 is great but the forced upgrades are ridiculous. As far as I can tell there is no known way to permanently disable the updates. If you disable the update service, there are scheduled tasks that run regularly to re-enable them. If you cancel the scheduled tasks, as soon as you reboot your computer they get added back. The possible solution is that there should be a registry key you can set to alert you that windows 10 updates are available instead of automatically installing them.