I could not get this to increase my score, but someone might. Since it is mentioned in the AMD Tweaks, I though this could be added to the NVIDIA section of the op at the bottom of Additional Items.Warning: Spoiler! (Click to show)
5) You can try increasing the priority of the Valley process. To do that start the benchmark in windowed mode, then use ctrl-shift-esc to bring up the Task Manger. Right click on the Valley.exe process, move to Set Priority and click Realtime. Then click Change Priority to confirm in the pop up window. You can also stop the explorer.exe process (or others) by right clicking and choosing End Process, and confirming the pop up. To bring back explorer, click File>New Task(Run…) then enter explorer.exe in the Open: box and click OK. After closing Task Manger, go back to Valley hit Esc, then you can click Full Screen on the Settings tab to resume the benchmark.