diff --git a/src/main.rs b/src/main.rs
index 937f620..274928c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,6 @@
 extern crate rscam;
+use std::time::Instant;
+
 use fltk::{
     app::App,
     enums::ColorDepth,
@@ -23,8 +25,8 @@ fn main() {
     // 配置摄像头参数
     match camera.start(&Config {
         // use command 'v4l2-ctl --list-formats-ext' see more...
-        interval: (1, 30),      // 设置帧率为 30fps
-        resolution: (640, 480), // 设置分辨率为 640x480
+        interval: (1, 210),     // 设置帧率为 30fps
+        resolution: (640, 400), // 设置分辨率为 640x480
         format: b"MJPG",        // 设置图像格式为 MJPG
         ..Default::default()
     }) {
@@ -40,6 +42,7 @@ fn main() {
             // 捕获一帧图像
             match camera.capture() {
                 Ok(data) => {
+                    let start = Instant::now();
                     let img = image::load_from_memory(&data).unwrap();
                     let rgb_data = img.to_rgb8();
                     if w == 0 {
@@ -50,6 +53,8 @@ fn main() {
                         RgbImage::new(&rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
                     frame.set_image(Some(fltk_image));
                     frame.redraw();
+                    let duration = start.elapsed();
+                    println!("Time elapsed in DrawImage is: {:?}", duration);
                 }
                 Err(e) => {
                     eprintln!("捕获错误: {}", e);