I used Helix for a while due to its support for LSP out-of-the-box, which my Vim config at the time couldn't live up to. I switched back to NeoVim after finding LunarVim[1] which had everything I was trying to get setup in my own config.
I’m a big fan of LunarVim, but handling large files out-of-the-box is not a great experience. Observed in both lvim, and neovim with my own config. I’ve found myself leaning on helix in those cases - quicker than screwing with either config, or running vim -u NONE.
LunarVim is my daily driver, but Helix is screaming fast compared to it in many cases.
[1] https://www.lunarvim.org/