Minecraft ruined its gameplay

The game is very laggy. Every single time Im about to tap play the game glitches out. I feel like every single time an update comes, its a downgrade. Before, the bugs werent as common. Ive had this game for 4 years and the only big changes are more bugs!!!!!!! Fix this.

Julianna/Julie about Minecraft: Pocket Edition, v1.1.3