Increase select() timeout from 5 to 25 ms to reduce CPU overhead.

--- a/POPFile/Loader.pm
+++ b/POPFile/Loader.pm
@@ -794,10 +794,10 @@
             }
         }
 
-        # Sleep for 0.05 of a second to ensure that POPFile does not
+        # Sleep for 0.25 of a second to ensure that POPFile does not
         # hog the machine's CPU
 
-        select(undef, undef, undef, 0.05) if !$nowait;
+        select(undef, undef, undef, 0.25) if !$nowait;
 
         # If we are on Windows then reap children here