Even without any AI stuff, it's a fantastic editor for its speed.
Someone posted this in the other zed thread but it looks on par with VS Code in speed according to these results:
https://mastodon.online/@nikitonsky/112146684329230663
Depends how you measure it. At least my battery lasts hour longer when using Zed and when comparing to VSCode. Also, the link is almost 1,5 years old.