diff --git a/code/map_data.js b/code/map_data.js
index 2f4f25a1..dff86653 100644
--- a/code/map_data.js
+++ b/code/map_data.js
@@ -9,8 +9,8 @@
 window._requestCache = {}
 
 // cache entries older than the fresh age, and younger than the max age, are stale. they're used in the case of an error from the server
-window.REQUEST_CACHE_FRESH_AGE = window.REFRESH;  // if younger than this, use data in the cache rather than fetching from the server
-window.REQUEST_CACHE_MAX_AGE = 5*window.REFRESH;  // maximum cache age. entries are deleted from the cache after this time
+window.REQUEST_CACHE_FRESH_AGE = 2*60;  // if younger than this, use data in the cache rather than fetching from the server
+window.REQUEST_CACHE_MAX_AGE = 15*60;  // maximum cache age. entries are deleted from the cache after this time
 
 window.storeDataCache = function(qk,data) {
   var d = new Date();
diff --git a/main.js b/main.js
index 47e9022f..4db68a51 100644
--- a/main.js
+++ b/main.js
@@ -114,7 +114,7 @@ function wrapper() {
 L_PREFER_CANVAS = false;
 
 // CONFIG OPTIONS ////////////////////////////////////////////////////
-window.REFRESH = 60; // refresh view every 60s (base time)
+window.REFRESH = 30; // refresh view every 30s (base time)
 window.ZOOM_LEVEL_ADJ = 5; // add 5 seconds per zoom level
 window.ON_MOVE_REFRESH = 1.25;  //refresh time to use after a movement event
 window.MINIMUM_OVERRIDE_REFRESH = 5; //limit on refresh time since previous refresh, limiting repeated move refresh rate