diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5284eb9c..db050d03 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,11 +23,11 @@ jobs:
         with:
           args: 'check'
 
-      - name: Static type check
-        run: |
-          echo "Skipping static type check for the moment, too much error...";
-          # pip install pyright
-          # pyright glances
+      # - name: Static type check
+      #   run: |
+      #     echo "Skipping static type check for the moment, too much error...";
+      #     # pip install pyright
+      #     # pyright glances
 
 
   test-linux:
@@ -52,8 +52,8 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install pytest
-          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          python -m pip install pytest
+          if [ -f requirements.txt ]; then python -m pip install -r requirements.txt; fi
 
       - name: Unitary tests
         run: |
@@ -115,11 +115,12 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          python -m pip install pytest
+          if [ -f requirements.txt ]; then python -m pip install -r requirements.txt; fi
 
       - name: Unitary tests
         run: |
-          python ./unittest-core.py
+          python -m pytest ./tests/test_core.py
 
   # Error when trying to implement #2749
   # pkg: No packages available to install matching 'py-pip' have been found in the repositories
@@ -139,5 +140,6 @@ jobs:
   #           pkg install -y python3 py-pip
   #         run: |
   #           set -e -x
+  #           python3 -m pip install pytest
   #           python3 -m pip install --user -r requirements.txt
-  #           python ./unittest-core.py
+  #           python3 -m pytest ./tests/test_core.py
diff --git a/.gitignore b/.gitignore
index aa0be710..a5a48d85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -65,3 +65,5 @@ bower_components/
 # Virtual env
 /venv*/
 
+# Test
+.coverage
diff --git a/Makefile b/Makefile
index f01e820f..e1ea6a12 100644
--- a/Makefile
+++ b/Makefile
@@ -91,6 +91,9 @@ test: ## Run All unit tests
 test-core: ## Run Core unit tests
 	$(PYTEST) tests/test_core.py
 
+test-perf: ## Run Perf unit tests
+	$(PYTEST) tests/test_perf.py
+
 test-restful: ## Run Restful API unit tests
 	$(PYTEST) tests/test_restful.py
 
diff --git a/dev-requirements.txt b/dev-requirements.txt
index fee1ee83..93f9917d 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,4 +1,5 @@
 codespell
+coverage
 fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
 gprof2dot
 matplotlib
diff --git a/tests/conftest.py b/tests/conftest.py
index fd1e92c8..c3fdd630 100755
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -25,10 +25,21 @@ from selenium import webdriver
 from selenium.webdriver import ChromeOptions
 from selenium.webdriver.chrome.service import Service as ChromeService
 
+from glances.main import GlancesMain
+from glances.stats import GlancesStats
+
 SERVER_PORT = 61234
 URL = f"http://localhost:{SERVER_PORT}"
 
 
+@pytest.fixture(scope="session")
+def glances_stats():
+    core = GlancesMain(args_begin_at=2)
+    stats = GlancesStats(config=core.get_config(), args=core.get_args())
+    yield stats
+    stats.end()
+
+
 @pytest.fixture(scope="session")
 def glances_webserver():
     if os.path.isfile('./venv/bin/python'):
diff --git a/tests/test_perf.py b/tests/test_perf.py
new file mode 100755
index 00000000..6b0caa81
--- /dev/null
+++ b/tests/test_perf.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python
+#
+# Glances - An eye on your system
+#
+# SPDX-FileCopyrightText: 2024 Nicolas Hennion <nicolas@nicolargo.com>
+#
+# SPDX-License-Identifier: LGPL-3.0-only
+#
+
+"""Glances unitary tests suite for Glances perf."""
+
+from glances.timer import Timer
+
+
+def test_perf_update(glances_stats):
+    """
+    Test Glances home page title.
+    """
+    perf_timer = Timer(3)
+    counter = 0
+    while not perf_timer.finished():
+        glances_stats.update()
+        counter += 1
+    assert counter > 3
diff --git a/tests/test_webui.py b/tests/test_webui.py
index aca14334..60c45a77 100755
--- a/tests/test_webui.py
+++ b/tests/test_webui.py
@@ -23,6 +23,20 @@ def glances_homepage(firefox_browser):
     return firefox_browser
 
 
+def test_loading_time(glances_webserver, glances_homepage):
+    """
+    Test Glances home page loading time.
+    """
+    assert glances_webserver is not None
+    navigation_start = glances_homepage.execute_script("return window.performance.timing.navigationStart")
+    response_start = glances_homepage.execute_script("return window.performance.timing.responseStart")
+    dom_complete = glances_homepage.execute_script("return window.performance.timing.domComplete")
+    backend_perf = response_start - navigation_start
+    frontend_perf = dom_complete - response_start
+    assert backend_perf < 1000  # ms
+    assert frontend_perf < 1000  # ms
+
+
 def test_title(glances_webserver, glances_homepage):
     """
     Test Glances home page title.
diff --git a/tox.ini b/tox.ini
index 4663461d..699b8967 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,8 +23,6 @@ deps =
     uvicorn
     jinja2
     requests
+    pytest
 commands =
-    python unittest-core.py
-    ; python unittest-restful.py
-    ; python unittest-xmlrpc.py
-    ;flake8 --exclude=build,.tox,.git
+    python -m pytest tests/test_core.py
diff --git a/unittest-xmlrpc.py b/unittest-xmlrpc.py
index 0e438df8..141f41b9 100755
--- a/unittest-xmlrpc.py
+++ b/unittest-xmlrpc.py
@@ -20,7 +20,7 @@ from glances import __version__
 from glances.client import GlancesClient
 
 SERVER_HOST = 'localhost'
-SERVER_PORT = 61234
+SERVER_PORT = 61235
 pid = None