Photo scenery + Autogen = blurry textures?

I have most Horizon / ESI photo scenery, with Treescapes and openVFR autogen. However, whenever I turn on Autogen, even at Sparse or Normal, the photo scenery textures are not as sharp as when autogen is off completely.

I know autogen on photo scenery is not always great but it can enhance the scenery in some circumstances, but is it possible to maintain sharp underlying textures when autogen is added? Are there any magic settings that can help this issue?

My system:

FSX & Photo scenery on separate ssd drives and separate to Windows10.

Processor i5/4790k over clocked to 4.0ghz

Graphics card MSI GTX760Ti Triton 2gb

RAM - 8 gbytes