1)Refresh the listings. (i.e. Live TV, Movies & Series)
2)Clear the cache on your IPTV app.
3)Make sure your device is up to date.
4)Restart your device.
5)Reboot your modem.
6)If issue persist try installing a VPN as your ISP may be throttling the connection.
7) If you are on a VPN disconnect and try connecting to a different server.