Please find attached my images.

Pics taken at P3D4V.5 default airport KVPS in default 2k CS Livery.

There is 13.1 difference in FPS between VC and External view, the external view providing fewer FPS than VC.

https://ibb.co/vdY8f2W CS 2K EXT Custom Display Settings
https://ibb.co/TbN0cc0 CS 2K VC Custom Display Settings
https://ibb.co/thVnSqB Custom Display Settings

The images below are from re-setting the display values to default.

https://ibb.co/nLC9vTv CS 2K VC Default Display Settings
https://ibb.co/51y22GM CS 2K EXT Default Display Settings
https://ibb.co/DtQKDtf Default Display Settings

Even though the default values appear more positive, you need to remember that not everybody flies into default airports with sub standard default scenery.

I'd like to re-itterate my previous post, stating that i had no such issue with your 757 Captain III using my referenced Custom Display Settings or other high-end aircraft addons.