In fairness, they had some graphics options in where you could manually set the draw distance - and thus, the tradeoff for frame rate - on a slider. Fortunately, the targeting button worked even when the draw distance was set super close and enemies were culled by the engine, so with a change of play style one could enjoy the game at a sensible pace.

I still remember mission 9 though - collecting the bombs and dropping them safely elsewhere. That was infuriating.