Nine times out of ten, if you’re disappointed with how a specific genre performs on your system, the speakers, the room, or both are the main culprit. Following those, the likely problem is your amplification and its synergy with your speakers.
Regarding the Qutest DAC, I found it produced a very mediocre, unremarkable sound. It was respectably resolving but didn’t circumvent any of the “glare” that’s typically encountered with mid-fi digital sources. To my ears it might as well have been a $200 Chinese DAC. In fact, there are budget Chinese DACs like the Topping E70 Velvet that sound far superior in my system.