I have not replaced it yet, so they my be other problems.
I do not agree with you when you say :
>They are fast becoming another Vista kind of programming environment. Lazy, incompetent.
If you are not happy with Mavericks you can always go back to ML
Did you check your memory ?
Did you check your disks ?
Did you repair permissions ?
Did you look at the memory usage ? is the swap used ?
MacBook Pro M3 MAX 128 GB 8TB - 2 x 48" screen --- Logic Pro --- Mir Pro 3D --- Most of the VI libs, a few Synch... libs --- Quite a few Kontakt libs --- CS80 fanatic