Touchpad too sensitive on LXDE

Question

I've recently installed LXLE (with LXDE desktop environment), and I keep having problems where my mouse clicks are being triggered while typing on the keyboard.

Basically "Mouse Click" is super sensitive which means that in the middle of writing it clicks and chooses another dialog (almost constantly).

How do I make this less sensitive (never happened on Windows)?

Edit
If it's helpful, I'm using a Fujitsu LIFEBOOK NH751

Added the output of xinput; dmesg | grep pnp (the device part):

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ PS/2 Generic Mouse                        id=14   [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)]
    ↳ Fujitsu FUJ02E3                           id=7    [slave  keyboard (3)]
    ↳ Video Bus                                 id=8    [slave  keyboard (3)]
    ↳ Fujitsu FUJ02B1                           id=9    [slave  keyboard (3)]
    ↳ Video Bus                                 id=10   [slave  keyboard (3)]
    ↳ Power Button                              id=11   [slave  keyboard (3)]
    ↳ FJ Camera                                 id=12   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=13   [slave  keyboard (3)]

Answer 1

this is the problem I get too so I turn it off by using this

# Turn off touch pad
# placed in ~/.xproflie also 
exec xinput set-prop 12 "Device Enabled" 0
exec synclient touchpadoff=1 
exec synclient VertEdgeScroll=0 
exec synclient TapButton1=0
exec synclient TapButton2=0
exec synclient TapButton3=0

you can stick this is your bashrc file to trun it on and off

alias TT='touchpad-toggle'

###

function touchpad-toggle {

# toggle synaptic touchpad on/off

# get current state
SYNSTATE=$(synclient -l | grep TouchpadOff | awk '{ print $3 }')

# change to other state
if [ $SYNSTATE = 0 ]; then
    synclient touchpadoff=1
    echo "touchpad OFF"
elif [ $SYNSTATE = 1 ]; then
    synclient touchpadoff=0
    echo "touchpad ON"
else
    echo "Couldn't get touchpad status from synclient"
    exit 1
fi
 }

####

alias TT

you can google synclient touch pad linux for key words to find out more