OK, I'll try again. When I say relevant information, here are just a few things you might want to mention:
A 2010 Mini, which model, which OS version, how much RAM, how are you connected to the HDTV, which HDTV, what resolution are you connecting to that HDTV at, which software are you using to try to play the rip back with, how does it look when you use a different software player, which blu-ray did you rip, do all blu-ray rips show grain or just this one, how does other video content look, etc. I could go on, but a good general rule around here is to really describe your setup because there can be a lot of variables.
Most of us use the default MakeMKV, some also include the HD audio track, but all MakeMKV does is put the video in a different container, it doesn't alter it otherwise.