1) Abate 2) Back off 3) Be a bit less critical 4) Become moderate 5) Cut some slack 6) De-intensify 7) Go slower 8) Lessen the pressure 9) Lower the intensity 10) Not be so hard 11) Pull back a bit 12) Reduce pressure 13) Relax 14) Relent 15) Show a little mercy 16) Show some leniency 17) Slack off 
[v] - become less intense 2. [v] - make less strong or severe
ease off verb become less intense