diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
index 41cfeeb..4bad241 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -61,4 +61,4 @@ body:
       label: Existing GitHub issues
       options:
         - label: I have searched existing GitHub issues to make sure the issue does not already exist.
-          required: true
\ No newline at end of file
+          required: true
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml
index 34051e4..9ca5a64 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -41,4 +41,4 @@ body:
     attributes:
       label: Additional information
       description: |
-        Please provide any additional information here. Include potential alternative solutions, or workarounds, as well as references, if any.
\ No newline at end of file
+        Please provide any additional information here. Include potential alternative solutions, or workarounds, as well as references, if any.
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index ee67225..c400f91 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -17,6 +17,9 @@ Please complete the following checklist when submitting a PR. The PR will not be
 
 - [ ] The code is formatted using Black.
       You can do this by running `black src tests`.
+- 
+- [ ] The imports are sorted using isort.
+      You can do this by running `isort src tests`.
 
 - [ ] The code is type-checked using Mypy.
       You can do this by running `mypy src tests`.
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index eee80f0..0d16352 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -38,6 +38,7 @@ jobs:
       run: |
         . ./venv/bin/activate
         black src tests --check --diff
+        isort src tests --check-only --diff
     - name: Test Typing
       run: |
         . ./venv/bin/activate
@@ -45,7 +46,7 @@ jobs:
     - name: Test Notebooks
       run: |
         . ./venv/bin/activate
-        pytest --nbmake notebooks --nbmake-timeout=600  # 10 minutes timeout
+        pytest --nbmake notebooks -n=auto --nbmake-kernel=python3 --nbmake-timeout=600  # 10 minutes timeout
 
     - name: Test Unittests with pytest
       run: |
diff --git a/poetry.lock b/poetry.lock
index b4297dd..c762c07 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -644,6 +644,22 @@ typing-extensions = {version = ">=4.6.0", markers = "python_version < \"3.13\""}
 [package.extras]
 test = ["pytest (>=6)"]
 
+[[package]]
+name = "execnet"
+version = "2.1.1"
+description = "execnet: rapid multi-Python deployment"
+optional = false
+python-versions = ">=3.8"
+groups = ["dev"]
+markers = "python_version <= \"3.11\" or python_version >= \"3.12\""
+files = [
+    {file = "execnet-2.1.1-py3-none-any.whl", hash = "sha256:26dee51f1b80cebd6d0ca8e74dd8745419761d3bef34163928cbebbdc4749fdc"},
+    {file = "execnet-2.1.1.tar.gz", hash = "sha256:5189b52c6121c24feae288166ab41b32549c7e2348652736540b9e6e7d4e72e3"},
+]
+
+[package.extras]
+testing = ["hatch", "pre-commit", "pytest", "tox"]
+
 [[package]]
 name = "executing"
 version = "2.2.0"
@@ -855,6 +871,23 @@ qtconsole = ["qtconsole"]
 test = ["packaging", "pickleshare", "pytest", "pytest-asyncio (<0.22)", "testpath"]
 test-extra = ["curio", "ipython[test]", "jupyter_ai", "matplotlib (!=3.2.0)", "nbformat", "numpy (>=1.23)", "pandas", "trio"]
 
+[[package]]
+name = "isort"
+version = "6.0.1"
+description = "A Python utility / library to sort Python imports."
+optional = false
+python-versions = ">=3.9.0"
+groups = ["dev"]
+markers = "python_version <= \"3.11\" or python_version >= \"3.12\""
+files = [
+    {file = "isort-6.0.1-py3-none-any.whl", hash = "sha256:2dc5d7f65c9678d94c88dfc29161a320eec67328bc97aad576874cb4be1e9615"},
+    {file = "isort-6.0.1.tar.gz", hash = "sha256:1cb5df28dfbc742e490c5e41bad6da41b805b0a8be7bc93cd0fb2a8a890ac450"},
+]
+
+[package.extras]
+colors = ["colorama"]
+plugins = ["setuptools"]
+
 [[package]]
 name = "jaraco-classes"
 version = "3.4.0"
@@ -1934,6 +1967,28 @@ pytest = ">=7.0.0"
 [package.extras]
 test = ["black (>=22.1.0)", "flake8 (>=4.0.1)", "pre-commit (>=2.17.0)", "tox (>=3.24.5)"]
 
+[[package]]
+name = "pytest-xdist"
+version = "3.7.0"
+description = "pytest xdist plugin for distributed testing, most importantly across multiple CPUs"
+optional = false
+python-versions = ">=3.9"
+groups = ["dev"]
+markers = "python_version <= \"3.11\" or python_version >= \"3.12\""
+files = [
+    {file = "pytest_xdist-3.7.0-py3-none-any.whl", hash = "sha256:7d3fbd255998265052435eb9daa4e99b62e6fb9cfb6efd1f858d4d8c0c7f0ca0"},
+    {file = "pytest_xdist-3.7.0.tar.gz", hash = "sha256:f9248c99a7c15b7d2f90715df93610353a485827bc06eefb6566d23f6400f126"},
+]
+
+[package.dependencies]
+execnet = ">=2.1"
+pytest = ">=7.0.0"
+
+[package.extras]
+psutil = ["psutil (>=3.0)"]
+setproctitle = ["setproctitle"]
+testing = ["filelock"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.9.0.post0"
@@ -2988,4 +3043,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<4"
-content-hash = "79986463da68857efceb8eddc41857db769cd32828660d83be6971655a680da9"
+content-hash = "9cc6cc382d0569c9c4a01b4bd7217da579c6bb37a51e2eaf9c55881a33406c8c"
diff --git a/pyproject.toml b/pyproject.toml
index ab1155f..ff96af6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,6 +62,8 @@ nbmake = "^1.5.5"
 wheel = "^0.45.1"
 build = "^1.2.2.post1"
 twine = "^6.1.0"
+pytest-xdist = "^3.7.0"
+isort = "^6.0.1"
 
 
 [tool.poetry.group.docs.dependencies]
diff --git a/run_pytests.py b/run_pytests.py
index dbc62c0..3be809a 100644
--- a/run_pytests.py
+++ b/run_pytests.py
@@ -70,6 +70,7 @@ def main():
         f"--cov-report={args.cov_report}",
         f"--cov-report=term-missing",
         f"--durations={args.durations}",
+        f"-n=auto",
     ]
     pytest.main(pytest_main_args, plugins=[json_plugin])
     json_path = os.path.join(args.tests_folder, ".tmp", f"tests_report_rn{configs.N_RANDOM_TESTS_PER_CASE}.json")
diff --git a/tests/__init__.py b/tests/__init__.py
index 5a078d3..95af403 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,5 +1,6 @@
-import pytest
 import numpy as np
+import pytest
+
 from .configs import TEST_SEED
 
 np.random.seed(TEST_SEED)
diff --git a/tests/conftest.py b/tests/conftest.py
index d3672af..b458970 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,4 +1,5 @@
 import pytest
+
 from .configs import RUN_SLOW_TESTS
 
 RUN_SLOW_ARG_NAME = "run_slow"
diff --git a/tests/test_dummy.py b/tests/test_dummy.py
index f7c2a96..bfaa4dc 100644
--- a/tests/test_dummy.py
+++ b/tests/test_dummy.py
@@ -1,9 +1,10 @@
 import argparse
+import runpy
 
 import pytest
+
 import python_template
-from python_template.__main__ import main, get_args_parser
-import runpy
+from python_template.__main__ import get_args_parser, main
 
 
 @pytest.mark.parametrize("dummy", list(range(10)))