[LorenPechtel]

Pre-programmed evasion. Give the drone a flight path, it's expected to position itself randomly within a certain distance of that flight path. At longer ranges it's feasible to dodge a bullet that way (which is why soldiers do a highly evasive path against a sniper) and even at short ranges if you can beat the tracking system it doesn't matter if you can beat the bullet.

[YurgenJurgensen]

That’s not the problem. These machines only have so much thrust, and are only aerodynamic in one direction. Sudden high-speed lateral acceleration is very costly from an energy budget perspective. Randomly dodging around bleeds off speed and may actually reduce survivability by increasing the time taken to cross the danger zone. This is made worse by most of the time the drone needs to aim for a weak spot or critical system to do damage, so terminal guidance is already fairly constrained. You don’t see drone pilots trying to jink around because the best move is to punch the accelerator and try to minimise the time your opponent has to react.