Correct Ram BIOS settings

[Zwifted]

I went into BIOS and changed the XMP profile to XMP profile 1 instead of disabled. It increased my performance by ALOT. But I have no clue about memory speeds and stuff. Could someone tell me if it's a safe change?

Motherboard: z87-k

Ram:
Slot 1: DDR 3 Corsair 8192 MB (Part number: CMY16GX3M2A2400C11)
Slot 2: DDR 3 G.Skill 4096 MB (Part number: F3-17000CL 11-4GBXL / 2133MHz 1.50V~1.60V )
Slot 3: DDR 3 Corsair 8192 MB (Part number: CMY16GX3M2A2400C11)
Slot 4: DDR 3 G.Skill 4096 MB (Part number: F3-17000CL 11-4GBXL / 2133MHz 1.50V~1.60V) 

Corsair specs:
Density: 16GB (2x8GB)Speed: 2400MHz
Tested Latency: 11-13-13-31, 
Voltage: 1.65V
Format: DIMM, 
Pin Out: 240 Pin, Intel XMP 1.3


before (ignore GPU): 

https://www.userbenchmark.com/UserRun/18727449

After:

https://www.userbenchmark.com/UserRun/18728002


And well.. I changed the XMP profile to 1, and now my windows 10 features doesn't work so have to do a clean install. But for the future, I need to know how to make my ram run as good as possible