ViEmu is faster than VsVim. VsVim will cause some small amount of input lag, depending on what you're doing. ViEmu also has a more complete emulation. I prefer

ViEmu is faster than VsVim. VsVim will cause some small amount of input lag, depending on what you're doing. ViEmu also has a more complete emulation. I prefer ViEmu, and own a license for it. Easily worth the price.