Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: @Apple thanks for ios10 update, even the best app @telegram freezing and crashing on SE.
This tweet contains emotions: 
anger, disgust, joy, optimism