10. Use the chip editor to move the logic cell used in the OR-gate design to another location inside the FPGA. For information of the chip editor, use the Quartus II Help function.

Try moving the LE used several columns farther away from the pushbutton and LED pins. Not all locations of the logic cell will work and some trial and error will be required. Save the edited design, rerun the timing analyzer, and compare the resulting time delays with the original time delays. See if you are able to achieve a faster implementation than the automatic place-and-route tools.