A 64 bit processor running a 64 bit application on a 64 bit OS will get the full benefit.
Anything not 100% "64" will not.
You can't paste a patch on a 32 bit application and hope to get a result.
32 bits has a data "width" of 4,294,967,296 bits
64 bits has a data "width" of 18,446,744,073,709,551,616 bits
Something like AFS2 is 64 bit. It doesn't notice data, much.
You don't think about framerates.
Or VAS, or any of those other ugly 3-letter words.
I am not peddling this particular software, it is in its infancy and may never mature as a sim.
But inescapably, the nextgen sim must be fully 64 bit.