I've tried the gfx tool it improved the quality greatly only I got worried it would eventually fry the CPU as was getting really hot it's only a budget tablet so can't expect too much but if u think that could have been me messing up the settings let me know I'm open to try again
My nick is Madraxa won't be on pubg till after 10th as I'm on mobile broadband near the end of my data allowance and don't have a current update but if in the meantime u want a change of scenery join for a battle on call of duty mobile player id also Madraxa I try to play at least 5-6 battles a day so easy to catch me