When i actualized to 1.16.0 version of minecraft windows 10 edition the keyboard input like moving por jumping with wasd and space, takes up to 6 seconds to react in-game after the key is pressed, but the mouse movements work perfectly, i discard fps problems because the framerate stays on 60
Thank you for your report!
We're actually already tracking this issue at MCPE-85756, so I will resolve and link this ticket as a duplicate.
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