More dual progress or multi progressing in the corruption than the current avaiable will be ideal to counter long grind for corruption, as in when you corrupt one part, it will effect another parts, and they dont need to be 1:1, but for exampler the enemy attack the ass, there will be chance they ll attack ass and anus or ass and thigh at the same time, so you progress in other body parts as well. With the current system, the enemy stop attack their desired target progress and attack the other body part at random and then come back to the original one. I think with dual or multi progress, the corruption will look less tendious and no need to tone down the grind as much.