Problem
If we stream a synthetic 16 channel board the sampling rate is 250

Expected
I'd expect the sampling rate to be 125 which is the actual sampling rate of the 16 channel board - cyton + daisy. This would be a more accurate synthetic replication of the boards and better for building and testing.
Operating System and Version
MacOS 15.6
GUI Version
v6.0.0 beta.1
Are you running the downloaded app or from Processing/VSCode?
Downloaded
Type of OpenBCI Board
Synthetic 16 channels