can anyone help me get better upload speed

@Domfinn,

Congratulations on your move, best of luck.

When I read your concerns, my first question would be - are you 100% sure that you used the T-mobile Internet app with the Placement tool to ensure that your gateway is in the optimum position (between you and your cell tower)? 

Here is a thread that talks about the issue and a few Youtube setup videos that can be helpful. If you signed up then your location was predetermined to be near a 5G tower. Take a look below and walkthrough the placement assistant and check your metrics to ensure you have good readings. 

Please post your results.

Best of luck!