I wonder: Could that be some automatic power saving, or the GPU throttling automatically due to heat? An other explanation could be clouds moving across. Maybe we need a “freeze weather” (i.e.: don’t change) mode to debug that 😉

I wonder whether it would help against massive drop of frame rate if automatically updating clouds or smoke less frequently if frame rate drops. Black smoke with outside view makes my framerate drop below 5fps, while (with a non-high-end card) I’m having about 30fps…
Since a very long time rendering clouds (and other semi-transparant staructures) is the biggest performance hit.

Talking about program start: When starting the spash screen appears, then the screen goes dark for a very long time while the sim is loading. I’d prefer seeing at least some progess meter (if no spash screen is possible). It’s for quite a long time like that, and I was hoping it will be automagically fixed “some day”…

The other thing is when a new flight displays for the first time, everything is frozen for a few seconds (1-3s). I’m curious: Why is that so, and is there anything to be done against that? I can suspect that all the threads doing various updates start at once, and the CPU or GPU is massively overloaded. If that’s the case, can’d the threads be started by priority, or (even better (while poor in Windows) given a priority relative to the importance of the task)?

Yes…stay away, far away from anything with an integrated GPU! A good processor, doesn’t matter if it’s a top of the line AMD or Intel, will be severely hamstrung by a weak GPU.

Better to get a laptop built around a dedicated GPU such as Nvidia 1050ti or better.

https://bitsum.com/portfolio/coreprio/

+1

I have same experience. Just loading the flight, sitting on tarmac fps goes down gradually from lets say 45 to 38fps in about 30sec. It is repeatable and doesn’t depends on locality, time or weather.