Different things have been improving for the past 10 years. TTFX is in a good spot now, multithreading is in a pretty good spot now, GC issues for most people are basically solved. AOT compilation was pretty much the last big item that a lot of people wanted, and that has recently (within the last year) gotten to the point where the code exists, it's merged, and it will be releasing soon (and then spending the next year or two getting improved)