speed up pasting with zsh-autosuggestions

ref: https://github.com/zsh-users/zsh-autosuggestions/issues/238\#issuecomment-389324292

.zshrc

@@ -105,6 +105,18 @@ if command -v pyenv 1>/dev/null 2>&1; then
   eval "$(pyenv init -)"
 fi
 
+# This speeds up pasting w/ autosuggest
+# https://github.com/zsh-users/zsh-autosuggestions/issues/238
+pasteinit() {
+  OLD_SELF_INSERT=${${(s.:.)widgets[self-insert]}[2,3]}
+  zle -N self-insert url-quote-magic # I wonder if you'd need `.url-quote-magic`?
+}
+pastefinish() {
+  zle -N self-insert $OLD_SELF_INSERT
+}
+zstyle :bracketed-paste-magic paste-init pasteinit
+zstyle :bracketed-paste-magic paste-finish pastefinish
+
 # Compilation flags
 # export ARCHFLAGS="-arch x86_64"