Corsair perihperals don't play well with Linux, I've found this with many distros. The Ckb project is quite good though.

Anyway, using a Corsair keyboard added 40 seconds to the boot time. I manged to fix this by changing and updating grub as shown below.

"GRUB_CMDLINE_LINUX_DEFAULT="usbhid.quirks=0x1B1C:0x1B11:0x20000000 quiet splash"

I've switched back to my Corsair M65 mouse and would like to include it in this workaround because it has the same problem.
Corsair K95 Keyboard ID - 1b1c:1b11
Corsair M65 Mouse ID: 1b1c:1b12

How should I change grub?