Nope. I just launched ubuntu.exe running Ubuntu 18.04 WSL on Windows 10 Pro latest stable release and it was the fastest terminal I ever used besides xterm on n

Nope. I just launched ubuntu.exe running Ubuntu 18.04 WSL on Windows 10 Pro latest stable release and it was the fastest terminal I ever used besides xterm on native Linux. I do have Windows defender disabled. I'm not sure if it scans every key press though, but it will bring WSL's output to a grinding halt. I use WSL / wsltty / tmux / terminal Vim (in WSL) as my primary dev environment. It's really solid, even with 1.5mb to 5mb markdown files. Vim uses about 8mb of RAM and a few % of CPU when typing. VSCode used 800MB of RAM and 50%+ of my CPU to open and idle in the same markdown file with 65%+ CPU load when typing.