[mikerlx]

I think icy is slowing my 2g iPhone down just like winterboard so is it possible to remove icy?

[sursture]

Icy is not active when not run, hence not slowing the phone down.

[NastyBen]

Icy should be listed in the cydia packages list so remove it there.

[blkcadi]

or you can use Cydelete, an app in Cydia that will delete form the springboard just like an AppStore app.