Howdy, we've had lots of issues with single threaded performance, poor memory management especially around garbage collection, we had to modify our SELinux policies as it likes to execute memory off the stack, npm has been very unreliable and often unreasonably slow, error handling of the node index app server seems to have some interesting behaviour but I haven't dug into that one too deeply yet and the list goes on. As an experienced systems engineer it's very clear that this is browser technology that was never designed not fit to run on servers.