Should I get a control pad or a speed pad for precise aiming in shooters?

Get a control pad. Control pads have more surface friction, making micro-adjustments easier and preventing overshooting, which is critical for precision in games like CS2 and Valorant. Speed pads are slick and cause overshooting with high sensitivity, while low-sensitivity arm aimers can sometimes use them but control is safer for consistency. A $25 control pad like the QcK Heavy will serve you better than a $50 speed pad unless you specifically need that glide.