diff --git a/tests/test_crypto.py b/tests/test_crypto.py
index 0f6af22ce..f2e813068 100644
--- a/tests/test_crypto.py
+++ b/tests/test_crypto.py
@@ -58,22 +58,10 @@ def test_deterministic_encryption():
 
     for hash_name in ['md5', 'sha1', 'sha256', 'sha384', 'sha512']:
         for count in [1, 50]:
-            crypted1 = crypto.aes_base64url_deterministic_encrypt(key, raw, salt,
-                                                                  hash_name=hash_name, count=count)
-            crypted2 = crypto.aes_base64url_deterministic_encrypt(key, raw, salt,
-                                                                  hash_name=hash_name, count=count)
+            crypted1 = crypto.aes_base64url_deterministic_encrypt(key, raw, salt, hash_name=hash_name, count=count)
+            crypted2 = crypto.aes_base64url_deterministic_encrypt(key, raw, salt, hash_name=hash_name, count=count)
             assert crypted1 == crypted2
-
-            t = time.time()
-            for i in range(100):
-                crypted1 = crypto.aes_base64url_deterministic_encrypt(key, raw, salt,
-                                                                      hash_name=hash_name,
-                                                                      count=count)
-
-            t = time.time()
-            for i in range(1000):
-                assert crypto.aes_base64url_deterministic_decrypt(key, crypted1, salt,
-                                                                  max_count=count) == raw
+            assert crypto.aes_base64url_deterministic_decrypt(key, crypted1, salt, max_count=count) == raw
 
 
 def test_hmac_url():