So here is my comment.
CPU has usage has basically doubled since that update. My computer can handle it but yeh thats kinda excessive.
Memory was a bit wonky prior - Still kinda the same. Sometimes it shoots up. Most of the time it is fine.
Since update - sometimes have a rare issues where cpu goes to 99% randomly at certain places, leaving fixes it.
I presume this is the new normal. So I will just learn to live with it. Thankyou.
We've seen some reports of this from others also. We'll pass it to the team to check out.