Optimum load bandwidth for Sharepoint Online?

Looking for some tips on the optimal upload speed for our Internet connection now that we have moved to Sharepoint Online. We are a small company (15 users) that works mainly with Word, Excel, PDF and JPG files, nothing unique or elegant. It is curious if there is an optimal load speed to facilitate the smoother OneDrive function by synchronizing the Sharepoint folders for each Windows Explorer user. Thank you,