diff --git a/gui/src/aaregui/scan_logic/raster_grid_manager.py b/gui/src/aaregui/scan_logic/raster_grid_manager.py
index fe7f2ef8..11a09127 100644
--- a/gui/src/aaregui/scan_logic/raster_grid_manager.py
+++ b/gui/src/aaregui/scan_logic/raster_grid_manager.py
@@ -108,9 +108,9 @@ class RasterGridManager(QObject):
             grid_size_mm=Coordinate(x= 0.8 * self.__beam_size_mm.x,
                                     y= 0.8 * self.__beam_size_mm.y),
             omega_deg=self.__geom.omega_deg,
-            exp_time_s=0.02,
+            exp_time_s=0.04,
             transmission=1.0,
-            dtz=120.0
+            dtz=150.0
         )
         self.__completed_grids : List[CompletedRasterGridElem] = []