You are talking about online stuff.
That’s not bugs and technical issues with the engine.
Obviously things have been slow, and part of that is developing a new engine along side the game at the same time.
They’ve gotten to a point of a really good base now.
Switching to a new engine would just slow things down further.
If you feel they are slow now, switching to a new engine just makes them slower
I never advocated releasing the rest of Infinite’s content on a different engine, that was the other guy.