The fastest way to cut materials from wood and to almost any thickness is milling, limited only by the height of the portal,
On a CNC milling machine, the cutting speed is, for example, 6 mm. milling cutter up to 12 meters per minute, in one pass the thickness is not more than 10 mm., subject to the components for the milling machine: a gear rack, rail guides, servo drives and a reliable frame design.