P.S. If you like it, I can add a version with a bit more speed (gtx 1160 Super - 1.1 Gk/s)
I wonder what exactly you mean by 1.1Gk/s. Only one type of kangaroos included in that? Using my 1080 Ti, I get about 580Mk/s with my version.
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The original JLP Kangaroo version 1.7 gives a speed of about 700 Mk/s for GTX 1660 Super, a few changes in the code and the speed will be 1.1 Gk/s and around 2.2Gk/s for 2080ti.
1080 Ti is old card, I don't know what speed you can get.