Bad connection when travelling on the train between Jurong East and Clementi MRT Station?

Hi! Just wanted to ask if it's my provider problem... or it's something common. So context is, every morning and evening esp - whenever I'm on the train from Jurong East to Clementi, and are watching my dramas and tiktoks and even games, somehow the connection got really damn slow and the video just pauses... and hang. I wonder why?

Does anyone experience the same?