Fiora W and Malphite E cripple clarity

Fiora and Malphites attack speed slows need more visual clarity. I think most people know and expect Nasus W to attack speed slow them, it's VFX and animation really show that. Fiora and Malphite's just feel really disorienting, especially since top laners usually need to weave in auto attacks into their spells. It feels odd playing someone like Riven or Renekton and whiffing your combo because of Fiora's W or Malphite E.

It would be nice if there was an indicator that shows that you're attack speed slowed, idk if something like the red low health flashing around the screen would be too much clutter but anything would be nice.