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Lenovo ideapad 320-15ISK youtube issue

I have a Lenovo Ideapad 320-15ISK with Core i5 7th gen, 8 GB RAM, and 128 GB SSD. Playing a video on YouTube keeps buffering yet my internet speed is around 50Mbps. This issue happens only on my laptop, others are okay. Sometimes the Wi-Fi connection disconnects randomly and reconnects only when playing a YouTube video. What might be the issue am running Windows 11 Pro?