Frequent Safari Error "This website is using significant memory"

While using Safari to browse or stream, I have been noticing the error "This website is using significant memory" more and more frequently. It tends to show up more while streaming, but it mostly seems to be while streaming through my TV provider's page (vue.playstation.com/watch to be more specific). If it only happened on the Vue site, I would just figure it was the page itself, but lately it seems to also be happening even on text only (minus any sidebar ads and such) webpages. It doesn't really ever hinder the page in any way until I attempt to exit full screen and/or close the tab, when it will somewhat freeze up momentarily before closing. I was browsing random forums earlier and it was happening on all of the pages. This problem goes back to High Sierra into Mojave, and across 3 different MacBook Pro laptops (2012, 2016, and 2018 models). I have seen this mentioned in other places as well as in these forums, but no clear answer outside of "install/use Chrome or Firefox". Is there anything else I can do for this error?