User Lorn has found a brilliant tip for *DRASTICALLY* speeding up FPGA compile times under Windows for PCs with the turbo boost feature. What's more, it's extremely simple to implement.
Please let's see this in future versions of LabVIEW as standard.
http://forums.ni.com/t5/LabVIEW-FPGA-Idea-Exchange/Multi-core-Compiling/idc-p/2301338#M297