Hey Smoke,
The frame drop I believe is just a ddraw windows 10 bug for old games. I put some other ddraw hooks on website download page that you can try out and see what works best for your machine.
I have found that the ddraw hook I have works best for most users but performance vary at times. I am going to test these out on my machine to see if I can get a better outcome on frame rate.
Regards,
Marley