Data showing up very slow

Hey, I'm new with Ionic and AngularJS.

I've been experimenting a bit and found a way to share data between the controller using service.

The only problem I have is that, the data appears slow!
The "SERVICE RAN" runs once as expected, but when I change to another page(template) I expect it to load instantly not taking 1-3 second to load up with the data.

So Imagine I open members.html, the service will run and get the data from my server.
And when I go to member.html, the "SERVICE RAN" doesnt run again, but the data takes like 1-3 seconds to fill the template.

Is this normal or I'm doing something wrong? Thanks

In app.js my service

.factory('MemberService',function($http) {
	console.log("SERVICE RAN");
	return {
		getMembers: function() {
			return $http.get('/api'+'/members.php');
		}
    }
})

In controller.js

Members Controller

.controller('MembersCtrl', function($scope, MemberService) {
   $scope.members = [];
   var promise = MemberService.getMembers();
   promise.then(
	  function(response) { 
		$scope.members = response.data;
		  console.log($scope.members);
	  },
	  function(errorPayload) {
		  console.log('failure loading members');
	  });

	console.log($scope.members);
})

Member Controller

.controller('MemberCtrl', function($scope, $stateParams, MemberService) {
   $scope.members = [];
   $scope.member = [];
   $scope.sid = $stateParams.playlistId;

   console.log($scope.sid);

   var promise = MemberService.getMembers();
   promise.then(
	  function(response) { 
		$scope.members = response.data;
		$scope.member = $scope.members[$scope.sid];
		  console.log($scope.members[$scope.sid]);
	  },
	  function(errorPayload) {
		  console.log('failure loading members');
	  });
})