Sorry for late response, wasn’t notified…
I have updated build, but later I found, that when I build release version it wasn’t working due to compiler optimization…
So I spent quite time in assembly, then almost a week in performance profiler. And finally I enjoyed learning how to introduce DNA structs, and how RNA list iterators work without documentation 
So just a little useful work was done…
At this point I have to finish all functionality.
Anyway, the 2GB limit is probably because you are using 32bit build.
I guess I can build 64bit, but did not try to do so…