My iQOO z9x when I playing bgmi with ultra game mode on in the middle of the game the game side bard is not showing and game was full lag and heating why iQOO z9x not optimising bgmi my 5 years old mobile lenovo k10 note still better than iQOO all are promoting iQOO mobile is Best I said confidently iQOO is very bad  optimisation I am last 1 year i am posting this problem in community but still your not resolving this problem verest mobile iQOO z9x in normal time also full lag and heating sometime also not opening camera also