Sorry, you’re right, it’s off topic, but it also isn’t a conversation as I just linked the thread mentioned by Sam concerning that new SDcard driver, and CaptainFred just got curious about that…
Anyway, I just recognized while testing that new sd-driver and activating ‘max_usb_current=1’ in /boot/config.txt that my iperf throughput went up to 170Mbps (+35Mbps!) tops using that given Edimax 600AC USB adapter and that 5V/2A PSU from RaspberryPi Foundation (merely ~9€ here in Germany, incredible!) - and I DID NOT get this funny coloured square in the top right of my screen yet!
As far as SD card compatibility goes: if it boots, you’re good to go. Boosting performance on the RPi2 will always be achieved by overclocking, and that definitely depends on your RPi, your PSU and your mSD-card.
My RPi2 is running at these specs:
(… and some more, but not relevant to this thread, if at all (as ActionA already kindly suggested…))