Slow reactions

Hi all. Yesterday I fired up Agopen and had no GPS at all. Assumed the SimpleRTK had lost its file somehow and eventually managed to reload the firmware and what I think is the correct rover file- although this was problematic and eventually had to use a shorter micro usb to do it. ( I have a new longer lead on the way today to try ). Have RTK and a signal now but everything is running soo slowww. For example when turning the tractor wheel the picture on screen turns the wheels at least a second later so is unusable.
Would anyone have any ideas please ? Thanks

Ps I’m Version 5.4

Edit. Also I don’t get as long a string of info in the gps box in AgIO as I used to ? Only about half way along whereas before it was nearly full

What is your baud rate set too?