diff --git a/gui/src/aaregui/scan_logic/raster_grid_manager.py b/gui/src/aaregui/scan_logic/raster_grid_manager.py
index 37304379..0f61ef03 100644
--- a/gui/src/aaregui/scan_logic/raster_grid_manager.py
+++ b/gui/src/aaregui/scan_logic/raster_grid_manager.py
@@ -112,9 +112,9 @@ 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=0.04,
+            exp_time_s=0.02,
             transmission=1.0,
-            dtz=150.0
+            dtz=200.0
         )
         self.__completed_grids : List[CompletedRasterGridElem] = []