android - AndEngine - update handlers -

i'm using latest version of andengine, , i'm wondering better make several update handlers different things or make 1 , calculate elapsed time?

gameengine.registerupdatehandler(new timerhandler(0.2f, true, new itimercallback() { // create new bullet } gameengine.registerupdatehandler(new timerhandler(0.2f, true, new itimercallback() { // create new bonus } gameengine.registerupdatehandler(new timerhandler(1f, true, new itimercallback() { // create new asteroid }  gameengine.registerupdatehandler(new timerhandler(0.2f, true, new itimercallback() {     // calculate elapsed time , create objects } 

i using separate updatehandler. not sake of performance or but, scalablity of software. adapting , updating code often. using separate handler easily... adding new objects , more important deleting objects easier(in case bullets or asteroids)...