Not really unless you totally eliminated any air getting under the vehicle. Ground clearance is likely to be more helpful than lowering it. Higher profile vehicles are always more prone to wind issues. Even a TIV is not 100 percent wind proof, as any disruption of the ground effect will allow the vehicle to be carried away, e.g., hit (lifted) by debris or more likely, the vehicle is unable to find a perfectly flat place to park without blocking the escape route from others.