 Three things you didn't know were slowing down your internet. You have a dirty router. Dust or pet hair can clog up the vents of the router, which causes it to overheat. This slows down the processor and slows down your internet speed. Your provider is throttling your speed for one of these reasons. Do you hit your data cap for the month? There could be network congestion, or the network provider could be getting paid to prioritize high speed on certain websites. Get a VPN, and if your speed improves, then you know you're being throttled by the ISP. If you're on low battery mode, your device won't be putting as much power into the network adapter, which makes your internet go much slower. You can edit your settings so low battery mode doesn't affect internet performance.