I agree with the others - I would perforate you baffles, they look more like dams than ducts. I had (motor) overheating issues with my plane, and a small increase in outlet (less restriction) made a huge difference in operating temps. Everything was previously ducted with baffles from the manufacturer, but for my setup I needed more cooling flow.

I would start perforating the dam to let flow over the ESC. Will cool the ESC more and let more air flow through the plane, cooling motor as well.