Slow spinny forhand and Backhand topspin

Hi so i feel If i Play in a slow spinny forhand or Backhand topspin its mostly Not very effective in my Situation. So my question would be as i am doing a slow spinny topspin with the backhand First i am using my underarm and than the wrist comes with and also the movement should be Most Forward and only a very Bit upwards because if i go save with more upward traictory my opponent Smash the Balls in and i am in Trouble so i Always should Play in spinny topspins that are lower with Most Forward Motion and also in the forhand the Same ?