Leon wrote:

A blade has an optimal cutting RPM. Feed in general rate does not change
that.

You sure about that? I had always understood that tooth profiles were
designed with a specific amount of "bite" in mind, and that blade speed
and feed rate needed to be controlled together to get the best cut.

Thus, regular 10" blades are designed to work on standard saws at
"regular" feed rates. If you want to feed the stock faster (for
production use, say) then you need to use fewer teeth or a faster
rotation in order to clear the chips faster. However, if you feed too
slowly you can burn the stock due to the teeth spending too much time in
contact with the wood.

Chris