High-Speed Quadcopter Aerodynamics Upgrade

My rocket-shaped quadcopter is already quick, but I want to squeeze out every bit of performance by refining its aerodynamics. Your main mission is aerodynamic optimization, with special emphasis on lowering drag, boosting useful lift, and ensuring rock-solid stability as velocity climbs... (Budget: ₹37500 - ₹75000 INR, Jobs: 3D CAD, 3D Modelling, CAD/CAM, Computational Fluid Dynamics, Design Optimization, Finite Element Analysis, Mechanical Engineering, Solidworks)