I had no issues with the Beta and one of these 2 updates is what caused it but looking through them I cannot see anything that would directly correlate to Skyrim and it's performance issues.
Steam Client Beta: February 9th
Steam Client Beta: February 10th
I have also posted on the beta pages letting them know this is an issue, hopefully it will get adressed, seems to be affecting everyone and not just Windows 10 users.
Yeah Steam beta is not a good thing to participate in if you don't want to troubleshoot everything every 5 minutes still it was relatively smooth sailing for the most part.
Thanks for all the help and advice guys, I would still be struggling with this were it not for you