diff --git a/ui/sd_internal/model_manager.py b/ui/sd_internal/model_manager.py
index ea624322..0cc9414c 100644
--- a/ui/sd_internal/model_manager.py
+++ b/ui/sd_internal/model_manager.py
@@ -37,6 +37,9 @@ def load_default_models(context: Context):
     for model_type in KNOWN_MODEL_TYPES:
         context.model_paths[model_type] = resolve_model_to_use(model_type=model_type)
 
+    # disable TURBO initially (this should be read from the config eventually)
+    context.vram_optimizations -= {'TURBO'}
+
     # load mandatory models
     model_loader.load_model(context, 'stable-diffusion')
 
@@ -116,6 +119,12 @@ def resolve_model_paths(task_data: TaskData):
     if task_data.use_face_correction: task_data.use_face_correction = resolve_model_to_use(task_data.use_face_correction, 'gfpgan')
     if task_data.use_upscale: task_data.use_upscale = resolve_model_to_use(task_data.use_upscale, 'gfpgan')
 
+def set_vram_optimizations(context: Context, task_data: TaskData):
+    if task_data.turbo:
+        context.vram_optimizations += {'TURBO'}
+    else:
+        context.vram_optimizations -= {'TURBO'}
+
 def make_model_folders():
     for model_type in KNOWN_MODEL_TYPES:
         model_dir_path = os.path.join(app.MODELS_DIR, model_type)
diff --git a/ui/sd_internal/task_manager.py b/ui/sd_internal/task_manager.py
index 4810584b..a6d4dadd 100644
--- a/ui/sd_internal/task_manager.py
+++ b/ui/sd_internal/task_manager.py
@@ -278,6 +278,7 @@ def thread_render(device):
 
             current_state = ServerStates.LoadingModel
             model_manager.resolve_model_paths(task.task_data)
+            model_manager.set_vram_optimizations(renderer.context, task.task_data)
             model_manager.reload_models_if_necessary(renderer.context, task.task_data)
 
             current_state = ServerStates.Rendering