Title: Sometimes There Is More Than 1-Second Of Latency
Sometimes (rarely), especially when using a large soundfont, you press a key (and see the note displayed), but you don't hear the note until seconds later. This only seems to happen when using the Java Sound synthesizer.
Cause Of Problem:
Unknown – it seems to be associated with loading a large soundfont – especially on a machine with limited memory (RAM).
Disconnect the Java Sound synthesizer, by setting the “MIDI Output Device” drop-box (on the F1 pane) to “(none)”. Then re-connect the Java Sound synthesizer by selecting it in the “MIDI Output Device” drop-box. Using a large soundfont when re-connecting the Java Sound synthesizer will work.
Fix Available (in version):