If the mods are genuine then it will finish in about a second (again, I can't do this myself because no source code => no way to compile on Linux aaaaargh 
)
)I have been a gpu miner dev since 2013 (with 1000 or more opensource commits to github in the ccminer project). All the optimizations in this mod are real, and I didn't change the algorithm so it's pure teqnique. With more work I can make it faster, but there is no money to be earned so I will probobly return to miner development. Check out my vertcoin miner with 1% fee. Vertcoin is halving in 2021, the price is low. Listed on bittrex.
Profitable to mine on old hardware with the sp-mod...
OK but I don't understand why you're not releasing the code so that it can be run on Linux.
If (or when) you stop developing, all the optimizations will be lost because nobody has the code to integrate them into something else!