hi all, funny that i stumbled upon the following:
the project i mentioned as above, with both lag and also ProChannel clicks and pops, has a huge load of tempo changes involved. If i were to delete all the tempo-change data from the Tempo View, keeping only one (1) singular tempo, the lag issue disappears.
Everything plays silky smooth as it should. The Playhead moves well, SMPTE clock counts up as it should and moving the mouse around does not affect the screen refresh issues.
unfortunately the issues with the clicks and pops still exist.
would any others kindly verify if this is true? many thanks...
cheers!!!