Modified version of the sniper script which uses the same payout as the target player bet rather than just waiting for their cashout (which causes a few ms delay)

accurate-payout-sniper.js

var config = {
  target: { value: '', type: 'text', label: 'User to follow' },
};
log('Script is running..');

engine.on('BET_PLACED', (bet) => {
  if (bet.uname == config.target.value) {

    if (userInfo.balance < 100) {
      log('You have a balance under 1 bit, you can not bet');
      return;
    }
    engine.bet(bet.wager, bet.payout); // aim at same payout as target..
  }
});

engine.on('CASHED_OUT', (cashOut) => {

  if (cashOut.uname === config.target.value) {
    if (engine.currentlyPlaying()) {
      engine.cashOut();
      log('Spotted ', cashOut.uname, ' cashing out at ', cashOut.cashedAt);
    }
  }
})