Upgraded PC, NEW motherboard + CPU RAM, Slower performance than it should be

[apudgypanda]

Hi, I recently upgraded my PC from a setup that had
AMD-FX8350
Crosshair V Formula Z Motherboard
ddr3 ram gskill 2400
EVGA GTX 1080 GPU

to
Intel i5-7600k
MSI Gaming Carbon Pro z270 Motherboard
DDR4 Gskill 2400 RAM
EVGA GTX 1080 GPU

I was testing out the performance and came across something strange. It seemed like my performance is less than expected. I then benchmarked my pc's performance and saw that my pc is currently running in the lowest 1% out of other pc's with the same parts according to CPU user.benchmark.

The pc sometimes hangs up in Windows finder, or stutters as if the processor is hanging up.

My Overwatch FPS performance also didn't seem quite up to par.

I can't seem to figure out why this is. I was wondering if anyone could help me troubleshoot to find the issue? I assembled everything correctly and the pc runs fine no errors, just lower than normal performance.

Thank you in advance for the help.

Update: I'm dumb. did a reset of windows and now it's running at hyper speed. Thanks for your answers guys, appreciate it

 

[jpardo2]

I highly recommend doing a complete fresh install of windows and reinstalling all drivers and applications accordingly. Unless you have already done this (I'm assuming you didnt)

 

[rhysiam]

A fresh install is a good idea.

The other thing to do is start monitoring temps and usage while you're running those benchmarks where performance isn't up to scratch.
HW-Monitor will look at CPU and GPU temps... check they're staying nice and low.
GPU-Z or MSI Afterburner will report on GPU usage, which should stay locked at or very close to 99% in a heavy gaming load, otherwise you're seeing a possible CPU bottleneck (or other issues).
Something like CPU-Z will report on CPU frequency, which should stay clocked nice and high under load (but expect the frequency to jump around under light loads and the CPU downclocks itself to save power).

What you're trying to do with all of the above is isolate the issue. Is your GPU only running at 50-60%? Are the CPU temperatures high (maybe the heatsync isn't mounted properly, or a fan is broken?) Isolate the issue and we can work from there.