Android Question

I really love this app called Swarm by Foursquare, but when I install it on my LG G Stylo and I try to use Google maps at the same time, then Google Maps doesn't work properly and loses GPS signal. As soon as I force to stop the swarm app, the Google Maps GPS starts to work perfectly again. Why is this? What can I do to fix it? I'd love to have both apps running at the same time with no problems. Thanks in advance.