Speed reducing that 66 was my first thought but I wanted to see what others offered. Here's a pic of a speed reducer for an industrial. A little big but it illustrates the concept. You can also homebrew a unit with a couple of pillow blocks, 2 pulleys and some bar stock.
Reducing the speed also increases the torque. I've got an industrial that I can run as low as 11 stitches per minute. Way too slow but very controllable as it increases in speed.
If that 66 can be controlled enough to work for you, it lets you work while you decide on and fund a genuine glove machine.
You could go here https://www.blocklayer.com/pulley-belteng and play with the potential speed reduction. I guessed at a 1/2" motor pulley, driving a 4" pulley that in turn drives a 1" pulley and then a hypothetical 3" hand wheel pulley. Driving the motor at 300 rpms gets 13 stitches per minute. Obviously, you can change any of that. It's the 3rd calculator down on the page.
If you do something like this, I'd make sure the foot controller is 100%. Those things can cause a lot of problems.