As a test, have you tried flying for a bit without any addons in your Community folder.
You appear to be getting regular crashes, would you say flying for 2-3 days without any Community addons would be enough time to see if has made a difference?
If that doesn’t work we can move on to other things, such as possible overclocks of the GPU etc.
Could you perhaps post a full breakdown of your computers hardware i.e. CPU, GPU (including make/model), memory (and any XMP profiles you might be using)?