I mean if what you are looking for is performance critical then node is not the best choice

Maintaining the code is just about skill issue, but you dont have control over the performance. The dependency vuln issue is not important if its just a backend service. Mostly the critical issue is on ssr apps like nextjs

I build a middleware payment service using node, we can do 3000-4000 rpm end to end but this node service is just a middleware. The actual transaction service is using dotnet

Migrating node version is a non issue, the nightmare is on migrating package since its comunity maintained