diff --git a/armor/src/armor_finder/anti_top/anti_top.cpp b/armor/src/armor_finder/anti_top/anti_top.cpp
index 5e915a0..677538d 100644
--- a/armor/src/armor_finder/anti_top/anti_top.cpp
+++ b/armor/src/armor_finder/anti_top/anti_top.cpp
@@ -81,18 +81,16 @@ void ArmorFinder::antiTop() {
 
 void ArmorFinder::antiTop() {
     if (target_box.rect == cv::Rect2d()) return;
-    static int fps = 0;
     uint16_t shoot_delay = 0;
     auto interval = getTimeIntervalms(frame_time, last_front_time);
-    if (anti_top_state == ANTI_TOP && interval > 700) {
+    if (anti_top_state == ANTI_TOP && interval > 500) {
         anti_top_state = NORMAL;
         LOGM(STR_CTR(WORD_YELLOW, "switch to normal"));
     }
-    fps++;
     if (last_box.rect != cv::Rect2d() &&
         getPointLength(last_box.getCenter() - target_box.getCenter()) > last_box.rect.height * 1.0) {
-        LOGM("switch %d! %lf", fps, getPointLength(last_box.getCenter() - target_box.getCenter()) / last_box.rect.height);
-        if (150 < interval && interval < 700) {
+        LOGM("switch! %lf", getPointLength(last_box.getCenter() - target_box.getCenter()) / last_box.rect.height);
+        if (150 < interval && interval < 500) {
             if (anti_top_state == ANTI_TOP) {
                 top_periodms.push(interval);
                 LOGM(STR_CTR(WORD_LIGHT_GREEN, "top period: %.1lf ms"), interval);
@@ -113,7 +111,7 @@ void ArmorFinder::antiTop() {
     }
     if (anti_top_state == NORMAL) {
         sendBoxPosition(0);
-    } else if (interval < top_periodms[-1] * 0.2) {
+    } else if (interval < top_periodms[-1] * 0.15) {
         sendBoxPosition(0);
     }
     last_box = target_box;