Wanna buy a mi box s. Can anyone tell me, after few months use, will it slow down/lag? Bought 1 china tv box last time, so lag its unusable.

so i just bought it last week. live with parents, wanna cut monthly astro, initially want astro njoi but got unifi at home, so i wanna utilized it. already install netflix, youtube, install tv channel thru kodi using this tutorial

https://www.youtube.com/watch?v=uueekwiJhT8

anything else should i do?

Besides using KODI to watch live TV, you can also install TVirl from Google Playstore TV and insert the playlist and epg url there.
TVirl will integrate with Google Live Channel apps pre-installed in MiBox S and you can use the 'Live' button on the remote to watch live TV.
The downside is you need to reload the playlist/epg every 3/4 days so that it will get the latest epg guide for you. The auto-reload function in TVirl is a paid function. If you malas to manually reload you can pay for the function. Me i just reload every 3 or 4 days. not a big deal
You can also use the playlist url contained from below website for playlist/epg for Malaysia TV
https://github.com/freeview/iptv/blob/master/README.MD
Happy Streaming