Is that possible, by any means, that the onHeartBeat scripst re-execution delay can be lowered? So the re-execution can be fastened?

Is that possible, by any means, that the onHeartBeat scripst re-execution delay can be lowered? So the re-execution can be fastened?

As far as I am aware the heartbeat event of an object is hardcoded to run roughly every 3 seconds at the Default AI level, and I don't think that can be changed.

If it's a creature running the event you could probably, in theory, force it to run another heartbeat halfway between "ordinary" heartbeats, by adding something like this in the heartbeat script:

if (!GetLocalBoolean(OBJECT_SELF, 140)) {
DelayCommand(1.5, ForceHeartbeat(OBJECT_SELF));
SetLocalBoolean(OBJECT_SELF, 140, TRUE);
}
else {
SetLocalBoolean(OBJECT_SELF, 140, FALSE);
}