diff --git a/modules/async_worker.py b/modules/async_worker.py
index 5056bcbc..abc78d65 100644
--- a/modules/async_worker.py
+++ b/modules/async_worker.py
@@ -260,6 +260,25 @@ def worker():
             adm_scaler_negative = 1.0
             adm_scaler_end = 0.0
 
+        elif performance_selection == Performance.LIGHTNING:
+            print('Enter Lightning mode.')
+            progressbar(async_task, 1, 'Downloading Lightning components ...')
+            loras += [(modules.config.downloading_sdxl_lightning_lora(), 1.0)]
+
+            if refiner_model_name != 'None':
+                print(f'Refiner disabled in Lightning mode.')
+
+            refiner_model_name = 'None'
+            sampler_name = 'euler'
+            scheduler_name = 'sgm_uniform'
+            sharpness = 0.0
+            guidance_scale = 1.0
+            adaptive_cfg = 1.0
+            refiner_switch = 1.0
+            adm_scaler_positive = 1.0
+            adm_scaler_negative = 1.0
+            adm_scaler_end = 0.0
+
         if translate_prompts:
             from modules.translator import translate2en
             prompt = translate2en(prompt, 'prompt')
@@ -896,7 +915,11 @@ def worker():
                     img_paths.append(log(x, d, metadata_parser, output_format))
 
                 yield_result(async_task, img_paths, black_out_nsfw, False,
-                             do_not_show_finished_images=len(tasks) == 1 or disable_intermediate_results or sampler_name == 'lcm')
+                             do_not_show_finished_images=len(tasks) == 1
+                                                          or disable_intermediate_results
+                                                          or performance_selection == Performance.EXTREME_SPEED
+                                                          or performance_selection == Performance.LIGHTNING)
+
             except ldm_patched.modules.model_management.InterruptProcessingException as e:
                 if async_task.last_stop == 'skip':
                     print('User skipped')
diff --git a/modules/config.py b/modules/config.py
index 71708555..9432c4ca 100644
--- a/modules/config.py
+++ b/modules/config.py
@@ -541,6 +541,7 @@ with open(config_example_path, "w", encoding="utf-8") as json_file:
 model_filenames = []
 lora_filenames = []
 sdxl_lcm_lora = 'sdxl_lcm_lora.safetensors'
+sdxl_lightning_lora = 'sdxl_lightning_4step_lora.safetensors'
 
 
 def get_model_filenames(folder_paths, name_filter=None):
@@ -604,6 +605,14 @@ def downloading_sdxl_lcm_lora():
     )
     return sdxl_lcm_lora
 
+def downloading_sdxl_lightning_lora():
+    load_file_from_url(
+        url='https://huggingface.co/ByteDance/SDXL-Lightning/resolve/main/sdxl_lightning_4step_lora.safetensors',
+        model_dir=paths_loras[0],
+        file_name=sdxl_lightning_lora
+    )
+    return sdxl_lightning_lora
+
 
 def downloading_controlnet_canny():
     load_file_from_url(
diff --git a/modules/flags.py b/modules/flags.py
index aecd7f41..df11c8d7 100644
--- a/modules/flags.py
+++ b/modules/flags.py
@@ -100,18 +100,21 @@ class Steps(IntEnum):
     QUALITY = 60
     SPEED = 30
     EXTREME_SPEED = 8
+    LIGHTNING = 4
 
 
 class StepsUOV(IntEnum):
     QUALITY = 36
     SPEED = 18
     EXTREME_SPEED = 8
+    LIGHTNING = 4
 
 
 class Performance(Enum):
     QUALITY = 'Quality'
     SPEED = 'Speed'
     EXTREME_SPEED = 'Extreme Speed'
+    LIGHTNING = 'Lightning'
 
     @classmethod
     def list(cls) -> list:
@@ -127,5 +130,6 @@ class Performance(Enum):
 performance_selections = [
     (f'Quality <span style="color: grey;"> \U00002223  {Steps.QUALITY.value} steps</span>', Performance.QUALITY.value),
     (f'Speed <span style="color: grey;"> \U00002223  {Steps.SPEED.value} steps</span>', Performance.SPEED.value),
-    (f'Extreme Speed (LCM) <span style="color: grey;"> \U00002223 {Steps.EXTREME_SPEED.value} steps, intermediate results disabled</span>', Performance.EXTREME_SPEED.value)
+    (f'Extreme Speed (LCM) <span style="color: grey;"> \U00002223 {Steps.EXTREME_SPEED.value} steps, intermediate results disabled</span>', Performance.EXTREME_SPEED.value),
+    (f'Lightning <span style="color: grey;"> \U00002223 {Steps.LIGHTNING.value} steps, intermediate results disabled</span>', Performance.LIGHTNING.value)
 ]
diff --git a/presets/lightning.json b/presets/lightning.json
index 56881c42..72199cf4 100644
--- a/presets/lightning.json
+++ b/presets/lightning.json
@@ -1,5 +1,5 @@
 {
-    "default_model": "sdxl_lightning_8step.safetensors",
+    "default_model": "juggernautXL_v8Rundiffusion.safetensors",
     "default_refiner": "None",
     "default_refiner_switch": 0.5,
     "default_loras": [
@@ -24,11 +24,11 @@
             1.0
         ]
     ],
-    "default_cfg_scale": 1.0,
+    "default_cfg_scale": 4.0,
     "default_sample_sharpness": 2.0,
     "default_sampler": "euler",
     "default_scheduler": "sgm_uniform",
-    "default_performance": "Speed",
+    "default_performance": "Lightning",
     "default_prompt": "",
     "default_prompt_negative": "",
     "default_styles": [
@@ -37,11 +37,17 @@
         "Fooocus Sharp"
     ],
     "default_aspect_ratio": "1152*896",
-    "default_overwrite_step": 8,
+    "default_overwrite_step": -1,
     "checkpoint_downloads": {
-        "sdxl_lightning_8step.safetensors": "https://huggingface.co/ByteDance/SDXL-Lightning/resolve/main/sdxl_lightning_8step.safetensors"
+        "juggernautXL_v8Rundiffusion.safetensors": "https://huggingface.co/lllyasviel/fav_models/resolve/main/fav/juggernautXL_v8Rundiffusion.safetensors"
     },
     "embeddings_downloads": {},
     "lora_downloads": {},
-    "previous_default_models": []
+    "previous_default_models": [
+        "juggernautXL_version8Rundiffusion.safetensors",
+        "juggernautXL_version7Rundiffusion.safetensors",
+        "juggernautXL_v7Rundiffusion.safetensors",
+        "juggernautXL_version6Rundiffusion.safetensors",
+        "juggernautXL_v6Rundiffusion.safetensors"
+    ]
 }
\ No newline at end of file