Cox offers 4 levels of internet service

$40 a month, $60, $80, $100.   I currently have the Premier which costs $80.  I only use the internet to check email,  browse websites, watch YouTube videos.  I don't do any video editing or anything high-powered.  Will the cheapest "tier" work for me?  I paid for the higher tier because I didn't want to wait a long time for pages to load.  I know that the forum is not for billing questions but this is not a billing question.