diff --git a/tests/core/authbasic/main.py b/tests/core/authbasic/main.py
index 2ffb1afe7..987cfd5b4 100644
--- a/tests/core/authbasic/main.py
+++ b/tests/core/authbasic/main.py
@@ -51,6 +51,8 @@ try:
             print("ℹ️ Navigating to http://www.example.com ...", flush=True)
             driver.get("http://www.example.com")
 
+            sleep(2)
+
             try:
                 driver.find_element(By.XPATH, "//img[@alt='NGINX Logo']")
             except NoSuchElementException:
@@ -85,6 +87,8 @@ try:
                 print("❌ The page is accessible without auth-basic ...", flush=True)
                 exit(1)
 
+            sleep(2)
+
             print(
                 f"ℹ️ Trying to access http://{auth_basic_username}:{auth_basic_password}@www.example.com ...",
                 flush=True,
diff --git a/tests/core/badbehavior/main.py b/tests/core/badbehavior/main.py
index 3e7cee3e3..4e3c2cb88 100644
--- a/tests/core/badbehavior/main.py
+++ b/tests/core/badbehavior/main.py
@@ -50,6 +50,7 @@ try:
             "http://www.example.com/?id=/etc/passwd",
             headers={"Host": "www.example.com"},
         )
+        sleep(1)
 
     sleep(1)
 
diff --git a/tests/core/greylist/main.py b/tests/core/greylist/main.py
index c41afe570..869414646 100644
--- a/tests/core/greylist/main.py
+++ b/tests/core/greylist/main.py
@@ -52,6 +52,8 @@ try:
 
     print(f"ℹ️ Status code: {status_code}", flush=True)
 
+    sleep(2)
+
     if status_code == 403:
         if not use_greylist:
             print(
@@ -95,6 +97,8 @@ try:
                 )
                 exit(1)
 
+            sleep(2)
+
             print("✅ Request was not rejected, User Agent is in the greylist ...")
             print(
                 "ℹ️ Sending a request to http://www.example.com/?id=/etc/passwd with User-Agent BunkerBot ...",
@@ -128,6 +132,8 @@ try:
                 )
                 exit(1)
 
+            sleep(2)
+
             print("✅ Request was not rejected, URI is in the greylist ...")
             print(
                 "ℹ️ Sending a request to http://www.example.com/admin/?id=/etc/passwd ...",