The 450 shocks were never designed to be on a banshee, and certainly never designed to be on a banshee with aftermerket a arms.
You may never get these right, but you need to increase your compression at least.
Flat ground landings like that are the worst. You will bottom those out first. Grab another gear and downside it.
PS if I read that pic correctly, and those are work boots, you are in for a broken ankle too.