It depends. It definitely opens faster and the general UI seems a bit faster, but open a largish file (a few MB) and VSCode will easily out-perform Zed because it doesn't have that fancy CDRT thing.
In my experience VSCode is plenty fast. Use it with no extensions and you will have zero problems with performance (though memory use isn't great). The real problems come when you have extensions, especially because it's often impossible to attribute performance issues to them because they can often do a lot of work all in the same "extension host" process.
> you will have zero problems with performance (though memory use isn't great)
Memory use is a part of performance, though, so I definitely would say VS Code has serious performance issues. It's why I no longer use it, in fact. It's inexcusable for something to eat as much RAM as VS Code does.
If you use vscode on a platform with limited resources you will see that vscode is absolutely NOT fastand zed outperforms vscose long way. Extensions or not. And electron is a pleague that needs to pass from this world
Based on this comment [0], they're building DeltaDB as a version control system which uses a CRDT, so I assume even in single player mode, the file will instantiate its own CRDT for fine grained tracking of changes.
In my experience VSCode is plenty fast. Use it with no extensions and you will have zero problems with performance (though memory use isn't great). The real problems come when you have extensions, especially because it's often impossible to attribute performance issues to them because they can often do a lot of work all in the same "extension host" process.