diff --git a/nerfactory/engine/trainer.py b/nerfactory/engine/trainer.py
index 83b3d6fee..181351f42 100644
--- a/nerfactory/engine/trainer.py
+++ b/nerfactory/engine/trainer.py
@@ -105,7 +105,6 @@ class Trainer:
                 # Note: if visualizer used, the rendering of the visualizer will be included in the iteration train time
                 with TimeWriter(writer, EventName.ITER_TRAIN_TIME, step=step) as t:
                     loss_metric_dict = self.train_iteration(step)
-
                     with TimeWriter(writer, EventName.ITER_VIS_TIME, step=step) as t:
                         self.visualizer_state.update_scene(step, self.pipeline.model)
 
diff --git a/nerfactory/viewer/app/src/modules/ConfigPanel/ConfigPanel.jsx b/nerfactory/viewer/app/src/modules/ConfigPanel/ConfigPanel.jsx
index 7e3f15e08..360c308f2 100644
--- a/nerfactory/viewer/app/src/modules/ConfigPanel/ConfigPanel.jsx
+++ b/nerfactory/viewer/app/src/modules/ConfigPanel/ConfigPanel.jsx
@@ -213,6 +213,12 @@ export function RenderControls() {
           set_fov(v);
         },
       },
+      // training speed
+      "Train Speed": buttonGroup({
+        'Fast': () => setControls({ min_resolution: 10, max_resolution: 10 }),
+        'Balanced': () => setControls({min_resolution: 50, max_resolution: 512 }),
+        'Slow': () => setControls({ min_resolution: 100, max_resolution: 1024 }),
+      }),
     }),
     [
       isTraining,