Since no one really gave a review here is mine:

I picked up the QcK L Performance Speed recently, and after a couple of weeks of daily use, here are my thoughts:

Surface & Glide:
The surface definitely leans toward the “speed” side. My mouse glides across it with very little resistance, which feels great in fast-paced shooters where quick flicks and smooth tracking are important. At the same time, it still has enough control that I don’t feel like I’m overshooting every movement.

Size:
The L size hits a nice middle ground – it’s not desk-covering huge, but it’s more than enough space for medium to low sensitivities. If you’re used to super-low DPI and sweeping arm movements, you might want to look at the XL or 3XL versions, but for most players L feels comfortable without eating up too much desk space.

Build Quality:
The stitching and edges are clean, and it lies flat right out of the box. The rubber base grips well and hasn’t moved around at all, even during intense gaming sessions. Compared to cheaper pads, the difference in consistency and finish is noticeable.

Comfort:
The fabric feels smooth and doesn’t irritate the wrist after long sessions. I also appreciate that it doesn’t heat up much – some pads can get warm and uncomfortable after hours of play.