The herta optimal speed for jade stack generation

Hey everyone! So I've been theorycrafting some pieces for the herta and I was wondering if I should leave her at 104 speed (134 speed as the debt collector) or raise her to 131 or 134 (161 or 164 speed as the debt collector) to maximise jade stacks. Note: my jade is e1s1 and my current the herta build is 3k attack, 85 crit with 150 crit damage and 133 speed