Mirror mode has always bin slower then normal client, something that can't be controlled from within a script.
 
 
	Will check out the eels dropping. 
	Have you tried running it in normal mode instead of mirror mode? To see the difference?
 
	EDIT: 
	Script udpated to V1.76: 
	- Fixed Typo in Mottled eels, should fix the dropping of them. 
	 
	Kind regards 
	Khaleesi