1.5 hour naps are still great! But if they keep dropping in time and you think it's because she needs more A time then just add 10-15 min and see if that helps. As your lo gets older she may not sleep 2 hrs at a time as her day sleep amounts will decrease. If you are concerned about her routine you can post it and we'll take a look and see if anything jumps out! Other signs that she may need more A time (in addition to naps shortening) are EW's and taking longer to go to sleep for naps. HTH!
