Yes, a good and stable Internet connection is the main requirement of any cloud gaming service on the market.
Latency is the main drawback as of now. When you watch a video, you'll hardly notice any problems with the connection, even if they are present. This is mainly because you don't have any live interaction with the video itself.
When it comes to cloud gaming, a slow and inconsistent Internet connection will lead to severe input lag.
Therefore, many users believe that cloud gaming is not yet suitable for professional and high-level competitive plays, where winning and losing are often decided in tenths or hundredths of a second.
In general, when you're about to dive into cloud gaming, make sure that:
You use either Ethernet or a 5 GHz Wi-Fi router.
The properties of your device and Internet connection meet the minimum requirement of Boosteroid.
You closed all apps, processes, browsers, and tabs on your device before launching games.
Your Internet connection is not loaded by streaming videos or downloading files when you launch games.
Note, when you use Ethernet, your Wi-Fi router should not be loaded by streaming videos, downloading files, etc. A cable connection is not a panacea in cloud gaming if your Network is loaded by something else.