My house right now has a network closet that has my modem, WiFi router, and a switch that sends 1 cat5e to each room. Well my kids all have gaming rigs, smart TVs, etc. since there is only one port in every room can I add a small ethernet switch in each room? Will it slow down speeds a lot in each room since there will be 4 devices technically being branched off one cat5e connection? My sons share a room and like to ps4 game together so wondering if speeds will still be good?