SAM is fine in Delve. I'd stick with it. Others can help you far better than I with the specifics, but you may just need to change/upgrade your gear or choice of food to help you even out those numbers or they might be perfectly normal. Maybe post what gear/food you're using in the SAM forum and they can give you any relevant advice.
Bastok Rank 10
MNK 99 / BST 99 / SMN 99 / DNC 99 / SAM 99 / WAR 99 / THF 99