Clock Dropped in half ? This affects uart baud as well!

Hi all,
Just got the Arty7 and was playing around. I noticed the Clock frequency dropped from 65 to 32.
The pre-build MCS runs at 65MHz and outputs at 115200 baud.
How ever when I build from git, its down to 32 MHz and outputs at 57600 baud.
Which seems odd, I’d expect if dropping the freq was intentional, then at-least the UART would have been modified accordingly to maintain 115200.