Hmmm. I'll look into this for you. It's not a problem I've had for many years so I haven't an answer for you using todays software. But there would have been no problem with your computer keeping up with the keyboard when it was dumping out the data which is why I think everything was fine when you saved the file. If there had been a problem you would have been notified then by the computer software.

Let me look into how to best get around this. But keep that file as it is most probably fine ( probably even copy it just as a backup if it is the only copy of your data so you have more than one copy of it )

If the data is in a MIDI file and clocked to the tempo then simply slowing the MIDI file tempo may solve it. But I tend to think it is getting sent in one big blast which is what is causing the problem.