Same here. I've tried it at least once a year and it still has the same issues it had on day one. The UI is incredibly slow and has an input delay on most mouse inputs. I gave up on it when they introduced Philips Hue remote controls instead of fixing the overall user experience or adding features like bookmark & settings sync(Light controls don't have a place in a web browser, ever, unless it's an opt-in addon).

The vast number of settings and features is great, but that's meaningless if the everyday browsing feels like using a bloated website on a Raspberry Pi.