My engine has a pretty low hashhit % (3.12%). I was wondering is this normal or is there something wrong with my Transposition Table.
I'm calculating the % as (hashhits/nodes)*100.

I was wondering if it is better to have little-endian representation of squares(a1=0,h8=63) or big-endian(h1=0,a8=63).
Currently I am using big-endian but I see that engines like Stockfish use little-endian so I was wondering if little-endian can be optimized to be faster.

On a side note, are addition and multiplication operators faster than array lookups?