I agree with the pro shop operator. I have both balls and for me, the Hyroad Pearl is usually a ball I go to after the IQ Tour starts to labor. However, I do have to take a step left. Is it stronger? Depends on what you're looking for. Getting in on the lane (I.e., 20-25 at the arrows, not forcing a ball up a burned track). The HYPearl is stronger, down lane. The IQTP is stronger, In the midlane. The shapes are different and compliment each very well.
I'm going to be frank, you sound like someone who refuses to or is incapable of moving their feet. You're using two low rg balls in the Lucid and IQTP which don't yield a ton of motion when the fronts dissipate. When you get something in your hand that has movement downlane its "too strong". With the extra hole and surface I'd suggest moving in on the lane and see what happens.
Or you could get a weaker ball, drill it weak and run the risk of it being a dart. But that's standard advice on ballreviews.com where a large majority of users think its criminal to move their feet. Its more prudent to jam a ball up dirt or the next favorite piece of advice, drill a urethane ball.