diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9c4ccb8..cc97788 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,8 +15,8 @@ jobs:
       - name: Run Norminette
         run: make norm
   build:
-    name: build + check allowed functions
-    runs-on: macos-12
+    name: check allowed functions
+    runs-on: macos-14
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -24,17 +24,13 @@ jobs:
           submodules: recursive
       - name: Build push_swap
         run: make
-      - name: Clean push_swap
-        run: make fclean
       - name: Build checker
         run: make bonus
-      - name: Build push_swap
-        run: make
       - name: check allowed_functions
         run: test/check_allowed_functions.sh
   unit_test:
     name: unit_test
-    runs-on: macos-12
+    runs-on: macos-14
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -45,7 +41,7 @@ jobs:
       - name: Unit test
         run: make test
   e2e_test:
-    runs-on: macos-12
+    runs-on: macos-14
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -53,6 +49,8 @@ jobs:
           submodules: recursive
       - name: Build push_swap
         run: make
+      - name: Build checker
+        run: make bonus
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
diff --git a/Rakefile b/Rakefile
index dbfcb05..8a8f637 100644
--- a/Rakefile
+++ b/Rakefile
@@ -6,11 +6,10 @@ RSpec::Core::RakeTask.new(:test) do |task|
   task.pattern = [
     "test/e2e/spec/corner_cases_spec.rb",
     "test/e2e/spec/error_cases_spec.rb",
+    "test/e2e/spec/checker_spec.rb",
   ]
 end
 
-RSpec::Core::RakeTask.new(:performance) do |task|
-  task.pattern = [
-    "test/e2e/spec/performance_spec.rb",
-  ]
+task(:performance) do
+  ruby "test/e2e/performance.rb"
 end
diff --git a/test/e2e/performance.rb b/test/e2e/performance.rb
new file mode 100644
index 0000000..90a3dfa
--- /dev/null
+++ b/test/e2e/performance.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require_relative "helper/command_helper"
+
+size = 500
+results = []
+
+20.times do
+  input = (0...500).to_a.shuffle.map(&:to_s)
+  stdout, _stderr, _status = execute_push_swap(*input)
+  results << stdout.split("\n").count
+
+  print "\e[32m.\e[0m"
+end
+
+max_operations = results.max
+min_operations = results.min
+average_operations = results.sum / results.size.to_f
+
+puts "\nFor size #{size}: Max: #{max_operations}, Min: #{min_operations}, Average: #{average_operations}"
diff --git a/test/e2e/spec/checker_spec.rb b/test/e2e/spec/checker_spec.rb
new file mode 100644
index 0000000..b9f6945
--- /dev/null
+++ b/test/e2e/spec/checker_spec.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require_relative "../helper/command_helper"
+
+describe("Performance test for push_swap") do
+  [5, 10, 50, 100, 200, 500, 1000].each do |size|
+    it "measures operations for random input of size #{size}" do
+      results = []
+      input = (0...size).to_a.shuffle.map(&:to_s)
+      stdout, _stderr, status = execute_push_swap(*input)
+      expect(status.exitstatus).to(eq(0))
+      results << stdout.split("\n").count
+
+      stdout, _stderr, status = execute_checker(*input)
+      expect(status.exitstatus).to(eq(0))
+      expect(stdout).to(eq("OK\n"))
+    end
+  end
+end
diff --git a/test/e2e/spec/performance_spec.rb b/test/e2e/spec/performance_spec.rb
deleted file mode 100644
index aff88f2..0000000
--- a/test/e2e/spec/performance_spec.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# frozen_string_literal: true
-
-require_relative "../helper/command_helper"
-
-describe("Performance test for push_swap") do
-  size = 500
-  it "measures operations for random input of size #{size}" do
-    results = []
-    20.times do
-      input = (0...500).to_a.shuffle.map(&:to_s)
-      stdout, _stderr, status = execute_push_swap(*input)
-      expect(status.exitstatus).to(eq(0))
-      results << stdout.split("\n").count
-
-      stdout, _stderr, status = execute_checker(*input)
-      expect(status.exitstatus).to(eq(0))
-      expect(stdout).to(eq("OK\n"))
-      print "\e[32m.\e[0m"
-    end
-    max_operations = results.max
-    min_operations = results.min
-    average_operations = results.sum / results.size.to_f
-    print "\n"
-    print "For size #{size}: Max: #{max_operations}, Min: #{min_operations}, Average: #{average_operations}"
-  end
-end
diff --git a/test/pain.sh b/test/pain.sh
index 5728bd9..17d4123 100755
--- a/test/pain.sh
+++ b/test/pain.sh
@@ -9,8 +9,8 @@ NBR_LINK=$( echo "$NBR" | tr ' ' ',' )
 CMD_LINK=$( echo "$CMD" | sed -e"s/rra/g/g" -e"s/rrb/h/g" \
 -e"s/rrr/i/g" -e"s/sa/a/g" -e"s/sb/b/g" -e"s/ss/c/g" \
 -e"s/ra/d/g" -e"s/rb/e/g" -e"s/rr/f/g"  -e"s/pa/j/g" -e"s/pb/k/g" | tr -d '\n')
-# CMD_COUNT=${#CMD_LINK}
-RESULT=$( echo $CMD | ./checker $NBR )
+CMD_COUNT=${#CMD_LINK}
+# RESULT=$( echo $CMD | ./checker $NBR )
 echo "Operations: $CMD_COUNT"
 echo "Result $RESULT"
 open "https://kaaaaakun.github.io/push-swap-pain/?&nbr=$NBR_LINK&cmd=$CMD_LINK"