A jump from 7ms to 50ms will wipe out gaming or voip. This can be especially bad with streaming video which cyclicly grabs a short buffer then nothing... Then grabs... Nothing. Your latency will bounce around +- 40ms and its equivalent to 2-3 packet drops in many games. I would run SQM since you have the CPU power
Yeah I had temporarily disabled it and noticed a difference right away when I tried playing CoD on my PS4. Once I re-enabled SQM it was smooth sailing once again.