Visor sliding down at high speeds

I recently bought my first new helmet after nearly 20 years of using exclusively used gear. The helmet, an AGV Corsa, fits well and looks great, but there’s one big problem with it: the visor will not stay up for more than 60 seconds at freeway speeds. I live in the four corners area, so I usually ride with safety glasses on and the visor up to keep my face and head from overheating. Has anyone had a similar problem or rigged their helmet to prevent this from happening?