- Change implementation strategy to Performance Explore.
At some projects, this could prevent timing issues, it not
increase the overall implementation time in a dramatic way.
The FMCOMMS1 meets timing on ZED/ZC702 only if the phys_opt_design step
is part of the implmentation flow, with the Explore argument.
"This step performs physical optimizations such as timing-driven
replicaiton of high fanouts nets to improve timing results"