Fixup low-prio idle's effect on min-period.

Change-Id: Ib01883e09a32d839cc20455276655ad39bd6828c

vcl/source/app/idle.cxx

@@ -65,7 +65,7 @@ sal_uInt64 Idle::UpdateMinPeriod( sal_uInt64 nMinPeriod, sal_uInt64 /* nTime */
         break;
     default:
         // FIXME: tdf#92036 workaround, I should be 1 too - wait 5ms
-        if (nMinPeriod < 5)
+        if (nMinPeriod > 5) // only shrink the min. period if nothing is quicker.
             nMinPeriod = 5;
         break;
     }