Better get yourself a Snickers bar, that's gonna take a while.
You could save some wear and tear on your spindle and cutter (heat) by turning it down a bit. I've done many finish passes with 0.0625" and 0.125" ballnose bits at 10,000 - 12,000.
“Participating in a gun buy back program because you think that criminals have too many guns is like having yourself castrated because you think your neighbors have too many kids.” Clint Eastwood
Those who hammer their guns into plows, will plow for those who do not - Thomas Jefferson