I'm experiencing slow performance and wondering if my RAM configuration is slowing my Mac Pro mid 2012 5.1, 3.2 GHz Quad-Core Xeon.  Running Big Sur 11.7.1 with Opencore.  I have 48 GB 1066 DDR3 ram, 2 x 16; 2 x 8 set up.  Here's a pic of the config.  How should I configure for max performance...