If your problem with emacs is only due to key bindings my advice to you is stick to emacs for at least editing your lisp code. In my opinion Emacs+SLIME (or SLY) is an unrivaled experience, not just when it comes to writing common lisp code, but compared to writing any other code in any other IDE. Instead look at increasing your lisp writing ergonomics in emacs. First recommendation I have is to use a structural editor like paredit. Look at few videos at emacsrocks to see how this works. This is one of the things that now makes me dread editing code that doesn't use s-expressions.
My other suggestion is to look into spacemacs or doom emacs. These are emacs distributions with vim (or hybrid) keybindings that go well beyond what you can do in vim itself. When I decided to give emacs another go it was largely thanks to spacemacs that I am now a heavy emacs user. It wasn't because of vim bindings (I don't care for these to be honnest) but because it demonstrated the things emacs can do.
One benefit of learning emacs is that it really is a tool for life.