reduce backwards drag as it also matters when in water/close to it. For laguna mojada specifically, the biggest bottleneck is stability and quick turns. You can use paddles as control surfaces to improve turning, and for stability it's usually better to use a gyro stabilizer/heli engine+angle sensors with a thin creation rather than a wide one (as it will give you more space to turn). You will still have to adjust the turning to not sink/start flying on turns though