It depends on the game and setting. Realistic or CQC games often NEED to have slow movement for immersion and realism purposes. Imagine you had Titanfall or TFT2 movement in Swat 4 or Insurgency Sandstorm XD. But still I think jumping has it's place even in these 'realistic' games (mounting over windows, jumping over obstacles etc). The solution is just to implement a stamina mechanic that prevents you from jumping again for a set period of time (just to prevent it from being abused)