Simple trick to profile ZSH

zshrc

if [[ "$ZPROF" = true ]]; then
  zmodload zsh/zprof
fi

# ... your ZSHRC with all your scripts

if [[ "$ZPROF" = true ]]; then
  zprof
fi

zshrc_prof.zsh

profzsh() {
  shell=${1-$SHELL}
  ZPROF=true $shell -i -c exit
}