We are not alone. Not talking about visitors from outer space but the internet. Assuming you only have one device on your at home network, that device can use all the bandwidth available on your home network and your ISP connection. Beyond that ISP connection your device sharing bandwidth with others.
In troubleshooting your issue, the first step is to make sure all the other devices on your home network are turned off. If you still have the issue, ping your router (as previously stated). Next ping your next hop to your ISP (as previously stated). With no ping issues at this point then any ping issue with devices beyond that point could be related to your ISP's network, the internet, the ISP for the end point your trying to ping, or the end point itself.
Another variable is that end points can be set up to only honor the first three ping and then block. Or they could treat pings as a low priority to respond to ensure real data traffic gets through. My forty years of troubleshooting data networks will tell you to troubleshoot the issue at hand, not a ping. Ping is nothing more than a tool to use that may or may not identify the cause of an issue.
The most common cause of poor internet gaming performance is the game website. The second most cause is some path in your internet connection, usually your ISP, realizing that a data pack is for a game will assign it a low priority or just discard if the path becomes busy. Yes, all the internet connections can recognize your game data packets. The third most common cause is the home network itself or even others in your neighborhood; other devices phoning home or too many people using high bandwidth apps, i.e. watching streaming video.