You have a very fast machine, so it's not likely that the CPU or Disk are causing trouble.
=== Running Benchmarks (please do not interrupt) ===
Running 'Math' benchmark...
Single-threaded integer math... 1,655 seconds
Single-threaded floating point math... 2,163 seconds
Multi-threaded integer math... 0,311 seconds
Multi-threaded mixed math... 0,366 seconds
Score: 4227
Running 'Image' benchmark...
Image creation / destruction... 0,160 seconds
Flood filling... 0,177 seconds
Direct copying... 0,280 seconds
Small renders... 0,496 seconds
Bilinear rendering... 0,228 seconds
Bicubic rendering... 0,827 seconds
Score: 10149
Running 'Database' benchmark...
Create database... 0,050 seconds
Populate database... 0,429 seconds
Save database... 0,067 seconds
Reload database... 0,045 seconds
Search database... 0,703 seconds
Sort database... 0,360 seconds
Group database... 0,463 seconds
Score: 10159
JRMark (version 29.0.81 64 bit): 8178