How to configure buffering

Hi guys, I’m pretty new to Kodi and IPTV simple client usage.

I’ve been trying to use this addon with a m3u list that works perfectly using the RosadinTV tool on windows but when I try to use the IPTV Simple Client on Kodi video keeps buffering every 5 or 6 seconds and it’s really annoying. Is there some config I am missing?

As I said if I use RosadinTV video plays smoothtly so I don’t think this is related to network speed.

Thanks in advance!