Not really. I was running at 1080p as for whatever reason games tend to crash more when I have my laptop set to the full resolution despite having graphics settings to 720p or less. But the full resolution is 3200x1800, which I have switched to to see if there is any difference and there is not.
No, see above, I was running in 1080p for other reasons, but have switched to the max resolution of 3200x1800 which doesnt make a difference. My laptop is quite old, its a Lenovo Yoga 2 Pro i7 w/8gb Ram. Its very finicky with display drivers so I have to run an old driver thats compatible with this machine. I suppose that could be at play, but I dont really have any issues in other programs. Funny enough, I still have Sonar X3 and Music Creator 6 installed and they have absolutely no problems what so ever, Z3ta is sized perfectly fine. I installed Reaper last night to test, and found that Z3ta is too big in that as well... Vital is too big in Reaper too, but at least fits on the screen in Cakewalk.
What Abacab said. Plugin UI stays the same huge size and the window just crops it out when you resize it.