Thanks for the direction.  However, I don't see anything to change click timing or turn debouncing on or off.

$ xinput list
⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ USB Optical Mouse                         id=8    [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
   ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
   ↳ Power Button                              id=6    [slave  keyboard (3)]
   ↳ Power Button                              id=7    [slave  keyboard (3)]
   ↳ Chicony USB Keyboard                      id=9    [slave  keyboard (3)]
   ↳ Chicony USB Keyboard System Control       id=10   [slave  keyboard (3)]
   ↳ Chicony USB Keyboard Consumer Control     id=11   [slave  keyboard (3)]
   ↳ Eee PC WMI hotkeys                        id=12   [slave  keyboard (3)]
[me@bigboy ~]$  
[me@bigboy ~]$ xinput --list-props 8
Device 'USB Optical Mouse':
       Device Enabled (155):   1
       Coordinate Transformation Matrix (157): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.
000000
       libinput Natural Scrolling Enabled (289):       0
       libinput Natural Scrolling Enabled Default (290):       0
       libinput Scroll Methods Available (291):        0, 0, 1
       libinput Scroll Method Enabled (292):   0, 0, 0
       libinput Scroll Method Enabled Default (293):   0, 0, 0
       libinput Button Scrolling Button (294): 2
       libinput Button Scrolling Button Default (295): 2
       libinput Button Scrolling Button Lock Enabled (296):    0
       libinput Button Scrolling Button Lock Enabled Default (297):    0
       libinput Middle Emulation Enabled (298):        0
       libinput Middle Emulation Enabled Default (299):        0
       libinput Accel Speed (300):     -0.600000
       libinput Accel Speed Default (301):     0.000000
       libinput Accel Profiles Available (302):        1, 1
       libinput Accel Profile Enabled (303):   0, 1
       libinput Accel Profile Enabled Default (304):   1, 0
       libinput Left Handed Enabled (305):     0
       libinput Left Handed Enabled Default (306):     0
       libinput Send Events Modes Available (274):     1, 0
       libinput Send Events Mode Enabled (275):        0, 0
       libinput Send Events Mode Enabled Default (276):        0, 0
       Device Node (277):      "/dev/input/event2"
       Device Product ID (278):        6447, 2326
       libinput Drag Lock Buttons (307):       <no items>
       libinput Horizontal Scroll Enabled (308):       1