Swingmark numbers are not good for Nimbus LAF

After JDK-8247304 we have improved out Swingmark numbers greatly but still numbers are not good in case of Nimbus LAF.

Metal:
Startup Time: 1460
Sub-Menus = 6506 (Paint = 0)
TextArea = 2832 (Paint = 602)
Sliders = 1798 (Paint = 502)
Lists = 838 (Paint = 493)
Table Rows = 1044 (Paint = 212)
Tree = 5931 (Paint = 813)
Score: 20658

OpenGL :
Startup Time: 1220
Sub-Menus = 3858 (Paint = 0)
TextArea = 1930 (Paint = 602)
Sliders = 2863 (Paint = 502)
Lists = 1518 (Paint = 493)
Table Rows = 1265 (Paint = 212)
Tree = 3486 (Paint = 813)
Score: 16347