In this case you may want to replace a boot's insole with a thinner insole. These are typically used for heel pain, but in some people they help with midfoot discomfort. Stretch the foot and calf muscles prior to skating. Skate for the first 15 minutes with very loose laces, or with the mid-buckle unlatched. Then gradually tighten the skate as the foot warms-up.
Some persons feel an actual lack of blood perfusion to the distal foot from a tight mid-boot.
Persons with wide feet may prefer Ultra Wheel skates, which have a wide last. The Great One, UltraAir, Infinity and Vision. Some persons with foot pain buy a longer skate than their foot sizing would suggest. It's possible to fill the empty toe space with some foam. It's possible that the longer boot has more vertical room in the mid-foot area.