Into a php project, I would like to show my current position on a map. Unfortunately, the position is very inaccurate. It deviates by about 20 metres from my actual position. Can it be more accurate?

if(!navigator.geolocation) {
        status.textContent = 'Geolocation is not supported by your browser';
    } else {
        var options = {
            enableHighAccuracy: true,
            timeout: 5000,
            maximumAge: 0
        };

        status.textContent = 'Locating…';
        navigator.geolocation.getCurrentPosition(success, error, options);
    }