Have you noticed any sluggishness when using Vim commands in VS Code? I use nvim + tmux as my go to and it's pretty responsive (still has trouble catching up to me sometimes) but I often have to wait for VS Code.
I have to wait sometimes, but normally it's fast. It's only when (I think) somehow the vim emulation bugs out that I need to wait a couple of seconds or just hit esc 5 times. Thankfully it's not often.