.net - Timer ticker Event is delay on some computer -

my .net project insert timer , set interval = 100 textbox set value every 0.5 second using below event :

timer1.interval = 100  private sub timer1_tick(sender object, e eventargs) handles timer1.tick         textboxweight.text= m_dblwg '* 1000         textboxqty.text= m_dblwg / iif(m_dblweightperpcs = 0, 1, dblweightperpcs)  end sub 

but it's work when run program on desctop when run on user's computer low spec, it's delay 3 second.