I dont mind the delay in the smashing of barrels... infact for me there is only a 1 second delay, if that.
I'd rather have them work on the combat.
Ah yeah: I noticed something:
When I started playing again, I went down to the tunnel and fought the skeleton. I noticed the combat was MUCH faster.
So I restarted the game under 800x600: it went REALLY faster.
It was a slowdown, then. The game works better on 800x600 (easier clicking and such) but then, it's an awfully low res.