diff --git a/mayan/apps/checkouts/tests/test_models.py b/mayan/apps/checkouts/tests/test_models.py
index bbf6659778..083cd78a50 100644
--- a/mayan/apps/checkouts/tests/test_models.py
+++ b/mayan/apps/checkouts/tests/test_models.py
@@ -104,14 +104,14 @@ class DocumentCheckoutTestCase(BaseTestCase):
             self.document.check_in()
 
     def test_auto_checkin(self):
-        expiration_datetime = now() + datetime.timedelta(seconds=1)
+        expiration_datetime = now() + datetime.timedelta(seconds=.1)
 
         DocumentCheckout.objects.checkout_document(
             document=self.document, expiration_datetime=expiration_datetime,
             user=self.admin_user, block_new_version=True
         )
 
-        time.sleep(2)
+        time.sleep(.11)
 
         DocumentCheckout.objects.check_in_expired_check_outs()
 
diff --git a/mayan/apps/document_signatures/tests/test_models.py b/mayan/apps/document_signatures/tests/test_models.py
index a0da6be8cf..a17607a786 100644
--- a/mayan/apps/document_signatures/tests/test_models.py
+++ b/mayan/apps/document_signatures/tests/test_models.py
@@ -240,7 +240,7 @@ class DocumentSignaturesTestCase(BaseTestCase):
         # Artifical delay since MySQL doesn't store microsecond data in
         # timestamps. Version timestamp is used to determine which version
         # is the latest.
-        time.sleep(2)
+        time.sleep(1)
 
         self.assertEqual(EmbeddedSignature.objects.count(), 1)
 
@@ -264,8 +264,8 @@ class EmbeddedSignaturesTestCase(BaseTestCase):
         super(EmbeddedSignaturesTestCase, self).tearDown()
 
     def test_unsigned_document_version_method(self):
-        TEST_UNSIGNED_DOCUMENT_COUNT = 3
-        TEST_SIGNED_DOCUMENT_COUNT = 3
+        TEST_UNSIGNED_DOCUMENT_COUNT = 2
+        TEST_SIGNED_DOCUMENT_COUNT = 2
 
         for count in range(TEST_UNSIGNED_DOCUMENT_COUNT):
             with open(TEST_DOCUMENT_PATH) as file_object:
@@ -292,7 +292,7 @@ class EmbeddedSignaturesTestCase(BaseTestCase):
 
         DocumentVersion._post_save_hooks = {}
 
-        TEST_UNSIGNED_DOCUMENT_COUNT = 4
+        TEST_UNSIGNED_DOCUMENT_COUNT = 2
         TEST_SIGNED_DOCUMENT_COUNT = 2
 
         for count in range(TEST_UNSIGNED_DOCUMENT_COUNT):
diff --git a/mayan/apps/documents/tests/test_models.py b/mayan/apps/documents/tests/test_models.py
index 25786aa361..59816015c3 100644
--- a/mayan/apps/documents/tests/test_models.py
+++ b/mayan/apps/documents/tests/test_models.py
@@ -102,7 +102,7 @@ class DocumentTestCase(BaseTestCase):
 
         # Needed by MySQL as milliseconds value is not store in timestamp
         # field
-        time.sleep(2)
+        time.sleep(1.01)
 
         self.assertEqual(Document.objects.count(), 1)
         self.assertEqual(DeletedDocument.objects.count(), 0)
@@ -130,9 +130,9 @@ class DocumentTestCase(BaseTestCase):
         self.assertEqual(Document.objects.count(), 0)
         self.assertEqual(DeletedDocument.objects.count(), 1)
 
-        # Needed by MySQL as milliseconds value is not store in timestamp
+        # Needed by MySQL as milliseconds value is not stored in timestamp
         # field
-        time.sleep(2)
+        time.sleep(1.01)
 
         DocumentType.objects.check_delete_periods()
 
@@ -235,7 +235,7 @@ class DocumentVersionTestCase(GenericDocumentTestCase):
 
         # Needed by MySQL as milliseconds value is not store in timestamp
         # field
-        time.sleep(2)
+        time.sleep(1.01)
 
         with open(TEST_DOCUMENT_PATH) as file_object:
             self.document.new_version(
diff --git a/mayan/settings/testing/base.py b/mayan/settings/testing/base.py
index 617da6cd62..4f5ad241ee 100644
--- a/mayan/settings/testing/base.py
+++ b/mayan/settings/testing/base.py
@@ -10,15 +10,43 @@ INSTALLED_APPS = [
 
 COMMON_PRODUCTION_ERROR_LOG_PATH = '/tmp/mayan-errors.log'
 
-TEMPLATES[0]['OPTIONS']['loaders'] = (
-    'django.template.loaders.filesystem.Loader',
-    'django.template.loaders.app_directories.Loader',
-)
-
 # Remove whitenoise from middlewares. Causes out of memory errors during test
 # suit
 MIDDLEWARE_CLASSES = [
     cls for cls in MIDDLEWARE_CLASSES if cls != 'whitenoise.middleware.WhiteNoiseMiddleware'
 ]
 
+# User a simpler password hasher
+PASSWORD_HASHERS = (
+    'django.contrib.auth.hashers.MD5PasswordHasher',
+)
+
 STATICFILES_STORAGE = None
+
+# Cache templates in memory
+TEMPLATES[0]['OPTIONS']['loaders'] = (
+    (
+        'django.template.loaders.cached.Loader', (
+            'django.template.loaders.filesystem.Loader',
+            'django.template.loaders.app_directories.Loader',
+        )
+    ),
+)
+
+CELERY_ALWAYS_EAGER = True
+CELERY_EAGER_PROPAGATES_EXCEPTIONS = True
+BROKER_BACKEND = 'memory'
+
+# Remove middlewares not used for tests
+MIDDLEWARE_CLASSES = [
+    cls for cls in MIDDLEWARE_CLASSES if cls not in [
+        'common.middleware.error_logging.ErrorLoggingMiddleware',
+        'django.middleware.security.SecurityMiddleware',
+        'corsheaders.middleware.CorsMiddleware',
+        'django.middleware.csrf.CsrfViewMiddleware',
+        'django.middleware.clickjacking.XFrameOptionsMiddleware',
+        'django.middleware.locale.LocaleMiddleware',
+        'common.middleware.timezone.TimezoneMiddleware',
+        'common.middleware.ajax_redirect.AjaxRedirect',
+    ]
+]