I'm attempting to reach a price point on some tile designs and i'm wondering if my machine is running slow or if it is what it is.

My machine is a 60k stonecrafter.

I'm cutting 0.375" marble and lime stone.

My cutting speed is @ 60% (turquoise) that is throttled to 70%.

The design is a hexagon within a hexagon, the edge quality is great but to achieve a tight grout line i'm stuck at this speed.

So the questions are, a) Are there any tuning tips or cheats to get this to cut faster? b) what should be my inches per minute with this set up?