Extreme Lag causes the game to crash and/or completely crash

The game was lagging till it got worse. Super Extreme Lag happend causing the game to completely crash. The other day a lag happend then it got worse. Extreme Lag happend causing a major lag spike. MCPE-48280 also there is more Extreme Lag issues: V1.11.1 issues Severe,Lag,Bugs,and glitch with a major lag spike: MCPE-48280 Lag spikes: MCPE-47990 Game lags: MCPE-47704 Old: Severe lag and Bugs: MCPE-47115