You can't, it's a budget cube for a reason. I personally would not have lubed it because lube slows cubes down unless you use DNM-37 or Max Fleet.I am not getting the mgc as I am a beginner in 6x6 and I do not compete in 6x6 in comp. A self-magnetized ylm 6x6 is my only 6x6, and I just want to try my best to make my ylm comfortable to use, at least catch less and turn faster. My ylm is so sluggish, even after lubing the pieces and the core. The friction in each turn is so strong that it makes my hands feel tired. Turning feels heavy. How to reduce the friction in each turn?
You will need to clean it out with soapy water and a toothbrush then let it dry for at least 24 hours. Even then It will still be slow, but now slightly less so.