What do you use as terminal emulator? I Switches from iterm2 to kitty and omz to starship. It is for sure faster now to start the terminal, even running command

What do you use as terminal emulator? I Switches from iterm2 to kitty and omz to starship. It is for sure faster now to start the terminal, even running commands has different response time, visible to the eyes. Could I ask How does fisher come into play if you have something like starship already?