Android loadLabel给出了非常滞后/慢的性能，任何解决方案？

I'm trying to create a launcher app in which I fetch all app names with loadLabel, but it's taking almost 3 second to load the names, and is very slow!!! I tried removing that text and now it works very fast! But I want app labels, Can we use any alternative method? Here's the code:I'm trying to create a launcher app in which I