diff --git a/nanovna.h b/nanovna.h
index 9b9b267..05467a0 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -1238,8 +1238,9 @@ typedef struct setting
   uint8_t test;                // current test number
   uint8_t harmonic;            // used harmonic number 1...5
   uint8_t fast_speedup;        // 0 - 20
+  uint8_t faster_speedup;      // 0 - 20
   uint8_t  _traces;            // enabled traces flags
-  uint8_t   draw_line;          // uses the trigger level setting
+  uint8_t   draw_line;         // uses the trigger level setting
 #ifdef TINYSA4
   uint8_t   lock_display;
 #endif
@@ -1456,7 +1457,7 @@ typedef struct properties {
 //sizeof(properties_t) == 0x1200
 
 #define CONFIG_MAGIC 0x434f4e60 /* 'CONF' */
-#define SETTING_MAGIC 0x434f4e63
+#define SETTING_MAGIC 0x434f4e64
 
 extern int16_t lastsaveid;
 //extern properties_t *active_props;
@@ -1783,6 +1784,7 @@ void set_trigger_level(float);
 void set_trigger(int);
 void update_rbw(void);
 void set_fast_speedup(int);
+void set_faster_speedup(int);
 //extern int setting_measurement;
 void self_test(int);
 //extern int setting_test;
diff --git a/sa_core.c b/sa_core.c
index fa3cd6c..a0812c8 100644
--- a/sa_core.c
+++ b/sa_core.c
@@ -682,6 +682,7 @@ void reset_settings(int m)
   setting.trigger_direction = T_UP;
   setting.trigger_mode = T_MID;
   setting.fast_speedup = 0;
+  setting.faster_speedup = 0;
   setting.trigger_level = -150.0;
 #ifdef __TRIGGER_TRACE__
   setting.trigger_trace = 255;
@@ -2036,6 +2037,12 @@ void set_fast_speedup(int s)
   dirty = true;
 }
 
+void set_faster_speedup(int s)
+{
+  setting.faster_speedup = s;
+  dirty = true;
+}
+
 //
 // Table for auto set sweep step/offset delays from RBW
 //
@@ -2129,6 +2136,8 @@ void calculate_step_delay(void)
         SI4432_step_delay += (SI4432_step_delay>>2) ;
       if (setting.fast_speedup >0)
         SI4432_offset_delay = SI4432_step_delay / setting.fast_speedup;
+      if (setting.faster_speedup >0)
+        SI4432_step_delay = SI4432_step_delay / setting.faster_speedup;
     }
     if (setting.offset_delay != 0)      // Override if set
       SI4432_offset_delay = setting.offset_delay;
diff --git a/ui.c b/ui.c
index af469be..5649764 100644
--- a/ui.c
+++ b/ui.c
@@ -1351,7 +1351,7 @@ enum {
   // #15
   KM_REPEAT, KM_EXT_GAIN, KM_TRIGGER, KM_LEVELSWEEP, KM_SWEEP_TIME,
   // #20
-  KM_OFFSET_DELAY, KM_FAST_SPEEDUP, KM_GRIDLINES, KM_MARKER, KM_MODULATION,
+  KM_OFFSET_DELAY, KM_FAST_SPEEDUP, KM_FASTER_SPEEDUP, KM_GRIDLINES, KM_MARKER, KM_MODULATION,
   // #25
   KM_HIGHOUTLEVEL,
 #ifdef TINYSA4
@@ -1429,6 +1429,7 @@ static const struct {
 [KM_SWEEP_TIME]   = {keypads_time        , "SWEEP\nSECONDS"},    // KM_SWEEP_TIME
 [KM_OFFSET_DELAY] = {keypads_positive    , "OFFSET\nDELAY"}, // KM_OFFSET_DELAY #20
 [KM_FAST_SPEEDUP] = {keypads_positive    , "FAST\nSPEEDUP"}, // KM_FAST_SPEEDUP
+[KM_FASTER_SPEEDUP] = {keypads_positive  , "FASTER\nSPEEDUP"}, // KM_FAST_SPEEDUP
 [KM_GRIDLINES]    = {keypads_positive    , "MINIMUM\nGRIDLINES"}, // KM_GRIDLINES
 [KM_MARKER]       = {keypads_freq        , "MARKER\nFREQ"}, // KM_MARKER
 [KM_MODULATION]   = {keypads_freq        , "MODULATION\nFREQ"}, // KM_MODULATION
@@ -4494,6 +4495,7 @@ static const menuitem_t menu_sweep_speed[] =
  { MT_ADV_CALLBACK,     SD_NOISE_SOURCE,      "NOISE\nSOURCE",   menu_scanning_speed_acb},
 #ifdef TINYSA4
  { MT_KEYPAD,           KM_FAST_SPEEDUP,"SPEEDUP\n\b%s",  "2..20, 0=disable"},
+ { MT_KEYPAD,           KM_FASTER_SPEEDUP,"FASTER\n\b%s",  "2..10, 0=disable"},
 #else
  { MT_KEYPAD   | MT_LOW,KM_FAST_SPEEDUP,"SPEEDUP\n\b%s",  "2..20, 0=disable"},
 #endif
@@ -5194,6 +5196,10 @@ static void fetch_numeric_target(uint8_t mode)
     uistat.value = setting.fast_speedup;
     plot_printf(uistat.text, sizeof uistat.text, "%d", ((int32_t)uistat.value));
     break;
+  case KM_FASTER_SPEEDUP:
+    uistat.value = setting.faster_speedup;
+    plot_printf(uistat.text, sizeof uistat.text, "%d", ((int32_t)uistat.value));
+    break;
   case KM_REPEAT:
     uistat.value = setting.repeat;
     plot_printf(uistat.text, sizeof uistat.text, "%d", ((int32_t)uistat.value));
@@ -5457,6 +5463,9 @@ set_numeric_value(void)
   case KM_FAST_SPEEDUP:
     set_fast_speedup(uistat.value);
     break;
+  case KM_FASTER_SPEEDUP:
+    set_faster_speedup(uistat.value);
+    break;
   case KM_REPEAT:
     set_repeat(uistat.value);
     break;