Misleading - Needs fixes or should have a note

[natew]

Hey guys, appreciate the effort here, but I saw someone sharing this around the other day and realized it's doing a lot more harm than good.

I don't think these benchmarks were ever really very helpful, mostly because Tamagui is designed to be "decent" by default, but very fast with the compiler turned on. Another reason is that Tamagui is very DX focused - we add props and validate strings and other things in dev mode quite a lot, we also have a bunch of extra hooks we run to attach information for debugging. Finally, Tamagui has gotten significantly faster on native since this benchmark, I think we got actually about 30% faster just in the last few versions. There's been hundreds of releases since 1.7x.

Would you mind adding a notice at the top of the readme that this is outdated and needs to be reworked to run in production? I can send a PR if you give me a thumbs up.