Version 2.2.0 have now a default intensity of 15. On my system I can get much higher hashrates with 16, but this values seems to be too high for some systems. To make TT-Miner working on most system I reduced this value down to 15. As a result I strongly recommend that you at least try an intensity of 16 or even more to get higher hashrates (command line: -i 16). This if for MTP only!
Miner madest reported that he gets very good results with grid size of 10240 and a core OC of 50. He gets 3.67 MH/s with his 1080Ti @ PL 85%, core 90, mem 0.
To specify this setting please add -gs 10240 to your command line - and please do not forget to remove the intensity option, this will not work together with -gs.
When setting a custom gridsize, does the number need to be a factor of 4? (or 8,16,32,64,etc.)? I notice that 10240 (as well as the default gridsize 4864) is divisible evenly by 4.