How to Disable Pre-Mapping Resynthesis Optimization?

Hello All,

Within the "Timing Optimization Advisor", the following setting exists:

"Maximum Frequency (fmax)" --> Stage 3 --> "Enable additional synthesis optimizations"

While I was trying to improve the timing on my project I had enabled this setting but it has worsened my setup time. I would like to disable this setting but I am unable to find this option within Quartus II. Any help would be appreciated.