Avoid hiccups when executing other functions

if (__mouse_pressed)
    return;
console.info("Updating...");
$http(load_values)
    .then(function (response) {
        var data = null;
        try {
            data = new DataView(response.data);
        } catch (e) {
            console.error(e);
            return;
        }
        tower = floor = measure = 0;
        for (var i = 0; i < ntowers * nfloors * nmeasures; i++) {
            tower = Math.floor(i / (nfloors * nmeasures));
            floor = Math.floor((i / (nmeasures)) % nfloors);
            measure = i % nmeasures;
            var measuretype = measures[measure].type;
            var valueIndex = 12 + measure * 9 + ( floor * nmeasures * 9) + (tower * nfloors * nmeasures *9 );
            var valueStatus = valueIndex + 8;
            towers_measures[tower][floor][measure].value = data.getFloat64(valueIndex, true);
            towers_measures[tower][floor][measure].status = data.getUint8(valueStatus, true) & 1;
            towers_measures[tower][floor][measure].used = (data.getUint8(valueStatus, true) & 128) ? 1 : 0;
        }
        for ( var i = 1; i < ntowers; i++ ) {
            var floor_switches_bits = towers_measures[i][0][pcs_switches_index].value;
            var floor_alarms_bits = towers_measures[i][0][pcs_alarm_index].value;
            var switches_status = [];
            var alarms_status = [];
            floor_switches_bits = floor_switches_bits >>> 2;
            floor_alarms_bits = floor_alarms_bits >>> 2;
            if ( floor_switches_bits != 0 )
                tower_control.set_tower_status(i, 1);
            else
                tower_control.set_tower_status(i, 0);
            for (var j = 0; j < 14; j++) {
                switches_status[j] = floor_switches_bits & 1;
                alarms_status[j] = floor_alarms_bits & 1;
                floor_switches_bits = floor_switches_bits >>> 1;
                floor_alarms_bits = floor_alarms_bits >>> 1;
                if(switches_status[j] && alarms_status[j])
                    tower_control.set_FCM_status(i, j+1, "ON_ALARM");
                else if(switches_status[j])
                    tower_control.set_FCM_status(i, j+1, "ON");
                else if(alarms_status[j])
                    tower_control.set_FCM_status(i, j+1, "OFF_ALARM");
                else
                    tower_control.set_FCM_status(i, j+1, "OFF");
            }
        }
        $localStorage.tower_values = JSON.stringify(towers_measures);
    }, function (error) {
        // todo handle errors
    });
}