I don't understand. Could you explain it with an example ?
He means when you serach for a package in PISI GUI manager, let's say you want to search for "abiword". As soon as you have typed the letter A it starts searching/indexing and then it takes one or two seconds (or more) before you are even able to type the letters B and I of abiword.
This "auto search" feature slows down therefore.
I would also prefer typing at least the first three letters and then giving the "search" order to speed up things.