Is there a way that I can decrease the tap sensitivity or turn off the
tap option on my touch pad?

In the "InputDevice" section you can add the option MinTapTime @ ~.25. Here are some examples of what other people have done.

Section "InputDevice"
        Identifier      "Alps Touchpad"
        Driver          "synaptics"
        Option          "CorePointer"
        Option          "Protocol"              "auto-dev"

        Option          "LeftEdge"              "60"
        Option          "RightEdge"             "830"
        Option          "TopEdge"               "70"

        Option          "BottomEdge"            "650"
        Option          "FingerLow"             "25"
        Option          "FingerHigh"            "30"

        Option          "MaxTapTime"            "180"
        Option          "MaxTapMove"            "110"
        Option          "EmulateMidButtonTime"  "75"

        Option          "VertScrollDelta"       "50"
        Option          "HorizScrollDelta"      "50"
        Option          "MinSpeed"              "0.2
"
        Option          "MaxSpeed"              "0.5"
        Option          "AccelFactor"           "0.01"
        Option          "EdgeMotionSpeed"       "40"

        Option          "UpDownScrolling"       "1"
        Option          "TouchpadOff"   "0"
EndSection
Section "InputDevice"
  Driver     "synaptics"
  Identifier "TouchPad"
  Option     "Device"          "/dev/psaux"
  Option     "Protocol"        "auto-dev"

  Option     "LeftEdge"        "1700"
  Option     "RightEdge"       "5300"
  Option     "TopEdge"         "1700"
  Option     "BottomEdge"      "4200"

  Option     "FingerLow"       "25"
  Option     "FingerHigh"      "30"
  Option     "MaxTapTime"      "0"
  Option     "MaxTapMove"      "0"

  Option     "VertScrollDelta" "100"
  Option     "MinSpeed"        "0.25"
  Option     "MaxSpeed"        "0.5"
  Option     "AccelFactor"     "
0.015"
  Option     "SHMConfig"       "on"
EndSection

David