Laggy as hell. Downright awful

How many versions has it been now and the app still stutters and chokes like hell.
The unbelievable lags from the opening the app to the latency in typing every word are maddening. Just how bad are your engineers and do you even test your product before shipping it? This issue has existed since the very first version many many years ago and you have zero intention to fix it. Optimization is like the most fundamental thing of building an app

eggimage about LINE, v8.1.1