“I have no idea how you can play a flight simulator and not be affected by them.”
That’s easily answered. If you aren’t affected by these numerous issues you relate. For example there is more than one way to fly in this simulator.
By the way for me live weather seems to work fine. At least it faithfully reflects the actual weather over my head so I assume it basically works.
Be so kind not to speak for everybody else and assume that how you see and want to ‘play’ the simulator ( a contradiction in itself) is how everybody else sees and uses it.
There has been an undoubted performance improvement in SU5. Sorry if that doesn’t apply to you. Please raise some Zendesk tickets specifying your specific problems. That is the way forward.