ezhfan
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Does your processor have two cores? If so, you can disable the second core/reconfigure the Windows core by changing it to a Uniprocessor core/through the Task Manager, force heroes.exe (or whatever it's called) to run on CPU0. That is, right-click on the process (not the window name, but heroes.exe) and select Set Affinity Mask. In the table, leave a checkmark only next to one processor (CPU0).