Best settings for Windows 7 HTPC

I have looked around the forums a bunch and every does things a little different. My setup is as follows.
Windows 7 64bit using intel HD4600 graphics
HDMI to Denon AMP then HDMI to Vizio TV
I set my computer resolution to 1920×1080
Refresh rate is at 60p (I have other options, 23 or 24hz, as well as 60i instead of 60p) * should I leave it at 60p?
When I start a movie, my screen turns off for a few seconds and then turns back on to the movie.

I set Quantization range to full and left full range in kodi as well.
I turned of IT content and set aspect ratio to 16:9

Set color depth to 32bit and enabled YCbCr

Standard color correction – application settings
Input range – application settings
Total color correction – disabled

Any suggestion on any settings to change to get the best possible video from my setup?

For Audio my kodi settings are:
Number of channels 5.1
Output config- best matched
stero up – disabled
maintain orig vol- enabled
resample quality- medium
keep audio – always
Enable DSP- disabled
Enable Passthrough- yes
DD – yes
DTS- yes

Any suggestion on the audio part? Thank you for any suggestions!!!

Cheers!