So I recently picked up a second 1080 for sli and I've been having a weird issue that goes both ways , if I set the 3D global SETTINGS under sli to Single gpu and set up sli under specific programs under program settings sli doesn't work even though it should be , it goes the other way around as well if I set sli globally and set programs that I know that cant do sli to single gpu it still trys to sli and tanks my fps lower than if it was using only one gpu , please help

~basically I have to switch back and forth on the global profile when I want to switch between sli and single gpu mode because of this~

Here are my specs

CPU: Intel Core i7-6700K 4.4GHz OC @1.25v
GPU: 2X SLI Asus Strix 8GB GTX 1080's OC GC +175 MEM +300
Motherboard: Asus PRIME Z270-A ATX LGA1151
RAM: G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-3000 Mhz
HDD: Seagate Barracuda 1TB 3.5" 7200RPM
SSD: PNY CS1311 240GB 2.5"
Case: NZXT S340 Mid Tower
CPU Cooler: Cooler Master Hyper 212 EVO
Power Supply: Thermaltake Toughpower Grand RGB 850W