change thread value

app.py

@@ -185,7 +185,7 @@ with gr.Blocks() as iface:
         remove_bg = gr.Radio(choices=["yes", "no"], label="Remove Background", value="yes")
         
         output_format = gr.Radio(choices=["PNG", "JPG"], label="Output Format", value="PNG")
-        num_workers = gr.Slider(minimum=1, maximum=16, step=1, label="Number of Workers", value=4)
+        num_workers = gr.Slider(minimum=1, maximum=16, step=1, label="Number of Workers", value=2)
 
     with gr.Row():
         bg_method = gr.Radio(choices=["bria", "rembg"], label="Background Removal Method", value="bria", visible=True)