Dynamic Lights vs my system

[EFRAIN 3]

Hello guys, I know P3D has been getting better and better, we all need to upgrade to catch up with everything coming out now into our sim world BUT some of us have priorities like work, family, home, etc. I dont think my setup is sooooo behind but I need help, since P3DV4 up to now V5 I been struggling with dynamic lights even though I run everything medium on my settings, I know every computer is different but I think i can ask the question; what can I balance in our to not have a big impact using dynamic lights during night flying, my frames will drop drastically just by checking the dynamic lights option, besides that I can fly anywhere in my sim now, thanks for any help, eventually I will get a newer system but I think I can work things out still at least for this year, thanks for any help!

i7 6700K OC 4.5 GTX1070 16RAM 1TB SSD windows 10