You could try looking at using ivy instead of helm. Not tried it myself but there was a thread on the emacs reddit last week [1] where people said it's much fas

You could try looking at using ivy instead of helm. Not tried it myself but there was a thread on the emacs reddit last week [1] where people said it's much faster. https://www.reddit.com/r/emacs/comments/51lqn9/helm_or_ivy/ https://www.reddit.com/r/emacs/comments/51lqn9/helm_or_ivy/