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Low Frame Rate after 1-2 hours [OpenWXR?]

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Hey all,

Looked into it on Facebook and no resolve, so I decided to put my troubles here. I start my sim fresh with the TBM at 40 FPS. After 1.5-2 hours of flying long distance, that frame rate drops below the acceptable 20 FPS. This is the only aircraft that has done this to me. I am on a Late 2014 iMac 4GHz i7, 12GB ram and AMD Radeon R9 M295X graphics with 4096 MB VRAM.

As for the sim, the staples regarding plugins and freeware scenery. However the problems don't occur when over that scenery, nor is the issue present on other aircraft (Zibo and Rotate MD-80).

I am a developer (I do web and server applications), so if you need an extra set of log files, I may be able to provide those.

Edited by Bonanza123d
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So I think there's potentially the cause lies in the OpenWXR plugin as I did a long flight in clear skies and it didn't exhibit the normal symptoms I have experienced previously. Of note, when I was having the issue, every time I got a WX update through XP NOAA WX, I would lose frames when it had to redraw clouds. I have not experienced this in other airplanes as previously stated.

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