活动加载时间问题（加载活动时的性能问题）

Am moving from one Activity to another activity, in second activity am showing the listview. Am using arraylist's data to fill the listview, so for that i have used "for" condition for looping. so for that looping its taking time to load that page. That page loading time is depending up on the data in the arraylist, if there is more data in the arraylist then looping taking time. Is there any way to reduce page loading time. Am moving from one Activity to another activity