Is there a way to increase the foot room?

Yes, if you need more space for your feet, simply let the air out of the floor chamber, then fold the rear of the floor over on itself (by 15 or 20cm) and slide the floor toward the rear of the boat. Then re-inflate the floor. This adds about 10cm of toe room. Also remove any footwear you may have on and make sure seat is adjusted so it is all the way back towards the rear of the cockpit.