The question I ask myself when I see this kind of project is: how long are you willing to maintain it for?
My main concern about a new language is not performance, syntax, or features, but long term support and community.
In the end, weight is a kind of strength, and popularity is a kind of quality. It looks promising but you can't expect long-term support until there's more contributors and users
At this point it is too early to know. Even JavaScript took like 20 years to catch on
The only way to have any idea of how long a language might be still around is to look at how long it's been already around. From this perspective , you can only use older languages. The benchmarks show that Lua (and the Luau and Lua+JIT variants) is actually very competitive, so I'd stick with one of those.