Up to 8x faster seems kinda of a crazy claim. 8x faster at what?! TS 7.0 is reasonably well optimized and compiles VSCode in well under 10 seconds..

This can type check and compile VSCode in less than a second?

For VSCode: 4x speedup vs TS 7, 3x vs TS 7.1

Yes, it's in the article.

Well, no, not exactly. The article says vscode is compiled in 5.28s in typescript 7.1 (nightly), and in 1.73s in tsrs (dev), which is 3x faster.

	▲	Rapzid 6 hours ago \| parent [-]
		3x isn't so wild but still very impressive.