Use SPACEBAR or F2 to enable/disable fastbaud. 
With fast baud enabled: 

C/X, Xem, Xr and EPC/X:
A speed of 50 baud will become 57,600 baud,
a speed of 75 baud will become 76,800 baud and
a speed of 110 baud will become 115,200 baud.

Xem and Xr:
A speed of 200 baud will become 230,400 baud,

Xr Plus:
a speed of 2400 baud will become 460,800 baud and
a speed of 4800 baud will become 921,600 baud.
