Glad to hear the new gear is working!
Maybe PS4 is an older wifi tech and was contributing to the slowness (albeit not as much as the router) and the new gear won't recognize it? I have an older phone just used on wifi around the house that wouldn't recognize my new router.
Is work going thru VPN? Is the laptop in same place when loading websites?
yes, laptop is stationary - Laptop is rarely through VPN - but sometimes it is required. Speed tests on laptop come back good - and I don't experience any slowness in regards to general usage of the laptop - it is just when loading webpages - sometimes it stops and thinks for 30 seconds before it loads.
Sounds like a laptop problem and not WiFi related.
Damn it @CastleSurveillance, the network visualization in UniFi is so cool it makes me want to replace my router and switches with UniFi gear. Unfortunately that would be quite expensive since I run a lot of switches right now and none of them are Ubiquiti, and some of them have SFP+ (10 Gbps) ports in use.