My Setup:
MacBook Pro
Retina, 15-inch, Mid 2014
Processor: 2.8 GHz Intel Core i7 (i7-4980HQ)
Memory 16 GB 1600 MHz DDR3
Graphics: NVIDIA GeForce GT 750M 2048 MB
O/S: macOS 10.14.4 Mojave

In-Game Resolution: 1440x900(non-Retina native resolution) Full-Screen

Headset: Logitech H390 USB (wired)
Mouse: Razer Naga Hex (wired)
Mouse Pad: Logitech G240 Cloth Gaming Mouse Pad on top of Logitech G440 Hard Gaming Mouse Pad (I play on a soft surface and use the G440 for rigidity -- the G240 is the mousing surface I use.) I have to replace the G240 from time-to-time because it wears and my mouse starts skipping -- other than that it's fine.