diff --git a/src/data_flights.py b/src/data_flights.py
index c79666e..c10f315 100644
--- a/src/data_flights.py
+++ b/src/data_flights.py
@@ -32,7 +32,7 @@ import random
 async def _fetch_all():
     """Holt Flugdaten fuer alle Stuetzpunkte."""
     now = time.time()
-    if _cache["data"] and now - _cache["ts"] < 45:
+    if _cache["data"] and now - _cache["ts"] < 170:
         return _cache["data"]
 
     async with _lock:
@@ -61,7 +61,7 @@ async def _fetch_all():
                     except Exception:
                         errors += 1
                 if i + 3 < len(grid):
-                    await asyncio.sleep(3.0)
+                    await asyncio.sleep(5.0)
 
         _cache["data"] = {"ac": list(seen.values()), "total": len(seen), "errors": errors}
         _cache["ts"] = time.time()
@@ -77,7 +77,7 @@ async def _collector_loop():
             await _fetch_all()
         except Exception as e:
             logger.warning(f"Flight collector error: {e}")
-        await asyncio.sleep(60)
+        await asyncio.sleep(180)
 
 
 def start_flight_collector():