Mute as many tracks as u can, or if need bounce all tracks 2 one mono audio backing track then turn of all processing mute all trackz exept the new one... go to devices, Device Setup, VST Multitrack, lower the asio buffer, if need go to expert and tweek the settings (tick all boxes 4 this purpouse, come back here after doing what u need)... now the delay should b very low!
This is a work around...
I would advice 2 get a better soundcard (or better/ updated asio drivers) this is generally the source of most probs... or otherwise u have a slow machine!!
In the old Vst u had an optinon 4 plug in delay compensation but I can't seem 2 find it now in SX (I think it's automatic)...
As it seems The prob is latency and not the delay compensation... meaning the notes get recorded in time but takes a small time 4 them 2 b heard ... also we only notice delays if they're bigger than 20 ms!!
Go to devices, plug in list, there is a column 4 the delay... there u c how much compenstion cubase is doing (in samples)...
I guess I would just quantise the midi if it was a simpler prob.!!
Z