NHL 26 at 1440 with 60FPS - Anyone got this?

Hi EA NHL fans. Since yesterday, we have the opportunity to play NHL 26 on PC with the GamePass Ultimate subscription. While Ultimate allows you to use 1440 with 60FPS, I was not able to get the game streaming on GameCloud with more than 1080 and 30FPS. This is not playable. I tried everything from doing all the necessary settings in the Xbox App and with the Edge browser using xbox.com/play in the browser directly. Activating the preview function also has no effect. I then tried with installing tamper monkey Chromium extension with the "Better xCloud" user script. This lets you configure a ton of stuff for the Xbox Cloud but you cannot set the resolution to more than 1080 either. If anyone has managed to get the game on the GamingCloud to run with 1440 and 60FPS I would love to hear from you. TIA.