P3D v5.3 HF1+ - KBOS - FPS-Drops

[Hanse]

After updating to v5.3 HF1+ (new installation) I experience a problem approaching KBOS 33L. My normal FPS (being already on the glide slope) are around 30. But just before hitting the runway e.g. when overflying the PAPI my FPS suddenly drop below 10 FPS and are between 10 and 5 before touchdown. This means the plane is not flyable anymore.

I checked this with FlyTampa KBOS as well as with the standard P3D v5.3 KBOS version and the behaviour is alwways the same like described above. So it seems to me that there is a conflict in the basic standard P3D scenery for this area with this airport. Also disabling the P3D standard KBOS (APX29160.bgl) and just using FlyTampa KBOS makes no difference. The same happens also using Aerosoft USCities Boston P3D v5.

I am now out of ideas what causes this. Any suggestions what to try to find the root cause and to fix it? Thanks.

Regards,
Rolf

[Martyson]

Rolf,

I will do a quick test of default P3D5.3.15.28131 KBOS

Did toy test with default or payware aircraft.?

[Martyson]

Rolf,

Previous edit/typo, revised here :
Did you test with default or payware aircraft.?

My Default P3Dv5.3HF1 KBOS ILS 33L test
FPS28 / locked at 29 Vram 3 of 10 GB

I needed to test the Alabeo PA31 so I used it for this test.

No FPS problems .
I did screenshots during the approach if needed for review.

[Hanse]

Hi Vaughan,

thanks for the quick response. For my test I used Aerosoft's A330 and now a standard P3D v5-plane. But with the same result like previously mentioned only the FPS are a little bit higher. In the meantime I also newly installed the standard scenery P3Dv5.3HF1 again and deleted prior all ORBX stuff like BASE and VECTOR. But no change. There seems to be a problem with the KBOS airport area on my system because if I fly a GA the FPS are going up again after leaving the airport area.

Do you have any idea what I could do or what do you suggest me to do?

Regards,
Rolf

[Martyson]

Hi Rolf,

You are welcome.
Hard to say.
Maybe road traffic?

I did notice a previous post for P3Dv5.2 where takeoff FPS was an issue here:
https://www.prepar3d.com/forum/viewtopi ... 26#p248226

[Hanse]

Hi Vaughan,

I think I found the issue which was related to my manually edited scenery.cfg. I newly built it up and it seems that this solves the problem. I will investigate furthger and also make some more tests tomorrow. Will report back.

Regards,
Rolf

[Martyson]

Rolf,

That is good news.
Good luck with your next test.

[Hanse]

Vaughan,

because of your statement that on your system everything works well e.g. no FPS-issue at KBOS 33L, I looked into my scenery.cfg and finally found the root cause for my problems. It is a small tool which improves the lights (p.e. traffic lights) and it seems that at the moment this one is not yet compatible with v5.3 HF1. So disabling this tool in the scenery.cfg solved the problem. Now everything is working fine and I have again around 30 FPS during the complete approach and landing. Thanks!

Regards,
Rolf

[Martyson]

Rolf,

You are welcome.

Thanks for the additional information on your fix/solution for KBOS.

Glad to hear your problem is resolved and that P3Dv5.3 HF1 is working fine on your setup.