Jerky video with USB-C to HDMI Adapter

I have a Surface Laptop 4. When I try to use it to stream football (soccer) to a TV via the official Microsoft Surface USB-C to HDMI Adapter the motion is slowed down for a few secs then it skips forward to catch up. It’s pretty unwatchable.

I have tried with the TV extending or duplicating the laptop screen. I have tried various lower resolutions and all the lower frame rates. When duplicating, the laptop screen also shows the jerkiness. If I remove the USB-C adapter, the video returns to normal.

I have tried this with 2 different Sony TVs. I have also tried an unbranded USB-C to HDMI adapter.

Any ideas on how I can get this working? For years I used an old laptop (Windows 10, i5 gen 2) with its own HDMI port but sadly it died.

Thanks in advance