How to make Elive (2.0 or 3.0) lighter?


I’m running Elive 2.0 in a machine with 160Mb max ram and 266cpu. I would like to know if people know how to make Elive lighter, faster responding, consuming less ram. I have understood there are some appearance related things I could possibly disable, and I found also there is a posibility to use other engines for enlightenment. I just don’t know if I change to say E16 engine do I lose something or do I get dependency problems or something?