It seems that most of my video files seem to lag, and it says "SVP Performance is too low. Try to lower the profile settings."  My CPU usage doesn't even reach 50% though which is weird.
I have an intel i5-2500k overclocked to 4.0GHz
Test summary
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  Date: 2014-09-26T14:58:22
  CPU:  Intel Core i5-2500K @3292 MHz [4 threads]
  GPU:  NVIDIA GeForce GTX 580 [ver.337.88]
  Mode: FHD + GPU [9 threads]
Overall scores
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  Synthetic CPU:                  MC1893
  Synthetic GPU:                  MG3310
  Real-life:                      FG1730
Details: synthetic
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  CPU: compose (single-threaded): 603
  CPU: compose (multi-threaded):  2213
  CPU: search (single-threaded):  444
  CPU: search (multi-threaded):   1655
  GPU: system -> GPU transfer:    1180
  GPU: GPU -> system transfer:    1089
  GPU: calculations:              1701
  GPU: total score:               5419
Details: real-life /FHD
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  decode video:                   10.20x (244.8 fps)
  48 fps - vectors search:        1.14x (54.8 fps)
  60 fps - frame composition:     1.97x (118.0 fps)
  48 fps - [SVP] fastest:         3.46x (165.9 fps)
  48 fps - [SVP] simple 1:        2.67x (128.1 fps)
  60 fps - [SVP] good:            1.50x (89.8 fps)
  60 fps - [SVP] high:            1.29x (77.4 fps)
  60 fps - [SVP] highest:         0.65x (38.9 fps)
  72 fps - [SVP] simple 2:        2.32x (167.2 fps)