diff --git a/sa_core.c b/sa_core.c
index 52b368b..9d03d83 100644
--- a/sa_core.c
+++ b/sa_core.c
@@ -1623,8 +1623,8 @@ static bool sweep(bool break_on_operation)
 //    dirty = true;
 
   if (dirty) {                      // Calculate new scanning solution
-    update_rbw();
-    calculate_step_delay();
+//    update_rbw();
+//    calculate_step_delay();
     // Set for actual time pre calculated value (update after sweep)
     setting.actual_sweep_time_us = calc_min_sweep_time_us();
     // Change actual sweep time as user input if it greater minimum