zshrc example and completions help

[MVanderloo]

This tool has been awesome migrating from zinit, and also enabling instant prompt with starship. Below I've added the relevant portion of my zshrc, for reference of others and to ask about completions.
I have git and docker completions working, but I'm not confident I know what it is doing and how to do it for other completion sources. I understand that some CLI come with a sourceable command, some completions are plugins, and sometimes homebrew packages include completions in /opt/homebrew/share/zsh/site-functions. My primary concern would be latency, is there any way to add completions without noticeable slowdown? How many is too many? Many thanks

[[ -r "$XDG_DATA_HOME/zsh/plugins/znap/znap.zsh" ]] ||
    git clone --depth 1 -- \
        https://github.com/marlonrichert/zsh-snap.git \
        "$XDG_DATA_HOME/zsh/plugins/znap"
source "$XDG_DATA_HOME/zsh/plugins/znap/znap.zsh"



# Starship
export STARSHIP_CONFIG="$XDG_CONFIG_HOME/starship/starship.toml"
znap eval starship "starship init zsh"

# set initial cursor, will be managed by zsh-vim-mode loaded later
echo -ne '\e[6 q' 
# print prompt
znap prompt

# Vim mode
MODE_INDICATOR="" # starship handles keymap mode indicator
KEYTIMEOUT=1      # reduce delay after hitting ESCAPE 
# cursor styling
znap source softmoth/zsh-vim-mode

# suggest commands based on history, fallback to completions
ZSH_AUTOSUGGEST_STRATEGY=( history completion )
znap source zsh-users/zsh-autosuggestions

ZSH_HIGHLIGHT_HIGHLIGHTERS=( main brackets )
znap source zsh-users/zsh-syntax-highlighting

# set path to completions cache
zstyle ':completion:*' cache-path "$XDG_CACHE_HOME/zsh/compdump"
# case insensitive matching
zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
# color file system completions
zstyle ':completion:*' list-colors 'di=34:fi=0:ln=36:pi=33:so=35:bd=33:cd=33:or=31:mi=0:ex=32:'

# load completions
znap eval git "curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/plugins/git/git.plugin.zsh"
znap fpath _docker 'docker completion zsh'

# zoxide
znap eval zoxide "zoxide init zsh"

# fzf 
znap eval fzf "fzf --zsh"
export FZF_DEFAULT_COMMAND="fd --hidden --strip-cwd-prefix --exclude .git"
export FZF_DEFAULT_OPTS="--height 60% --border sharp --layout reverse --ansi --color=fg:-1"

# mise
znap eval mise "mise activate zsh"
znap eval _mise "mise completion zsh"