diff --git a/tests/.testsuite.php b/tests/.testsuite.php
index 496c865..e25466e 100644
--- a/tests/.testsuite.php
+++ b/tests/.testsuite.php
@@ -267,6 +267,11 @@ public function dump_object_methods($object, array $arguments = [], FilterInterf
             echo $rc->getName(), $info, $access, $m->getName(), '():', $final_res, PHP_EOL;
         }
     }
+
+    public function need_more_time() {
+        // NOTE: this check is a bit fragile but should fits our need
+        return isset($_ENV['TRAVIS']) && isset($_ENV['TEST_PHP_ARGS']) && $_ENV['TEST_PHP_ARGS'] == '-m';
+    }
 }
 
 interface FilterInterface
diff --git a/tests/V8Isolate_limit_time.phpt b/tests/V8Isolate_limit_time.phpt
index d056d15..0cdcc71 100644
--- a/tests/V8Isolate_limit_time.phpt
+++ b/tests/V8Isolate_limit_time.phpt
@@ -25,18 +25,15 @@ $file_name = 'test.js';
 
 $script = new V8\Script($context, new \V8\StringValue($isolate, $source), new \V8\ScriptOrigin($file_name));
 
-// NOTE: this check is a bit fragile but should fits our need
-$needs_more_time = isset($_ENV['TRAVIS']) && isset($_ENV['TEST_PHP_ARGS']) && $_ENV['TEST_PHP_ARGS'] == '-m';
-
-if ($needs_more_time) {
+if ($helper->need_more_time()) {
   // On travis when valgrind active it takes more time to complete all operations so we just increase initial limits
   $time_limit = 5.0;
   $low_range = 4.5;
-  $high_range = 7.5;
+  $high_range = 10.0;
 } else {
   $time_limit = 1.5;
   $low_range = 1.45;
-  $high_range = 1.6;
+  $high_range = 1.65;
 }
 
 $helper->assert('Time limit accessor report no hit', false === $isolate->IsTimeLimitHit());
diff --git a/tests/V8Isolate_limit_time_nested.phpt b/tests/V8Isolate_limit_time_nested.phpt
index 4eaea3d..32683a7 100644
--- a/tests/V8Isolate_limit_time_nested.phpt
+++ b/tests/V8Isolate_limit_time_nested.phpt
@@ -57,18 +57,15 @@ $file_name1 = 'test.js';
 
 $script1 = new V8\Script($context1, new \V8\StringValue($isolate1, $source1), new \V8\ScriptOrigin($file_name1));
 
-// NOTE: this check is a bit fragile but should fits our need
-$needs_more_time = isset($_ENV['TRAVIS']) && isset($_ENV['TEST_PHP_ARGS']) && $_ENV['TEST_PHP_ARGS'] == '-m';
-
-if ($needs_more_time) {
+if ($helper->need_more_time()) {
     // On travis when valgrind active it takes more time to complete all operations so we just increase initial limits
     $time_limit = 5.0;
     $low_range = 4.5;
-    $high_range = 7.5;
+    $high_range = 10.0;
 } else {
     $time_limit = 1.5;
     $low_range = 1.45;
-    $high_range = 1.6;
+    $high_range = 1.65;
 }
 
 $isolate1->SetTimeLimit($time_limit);
diff --git a/tests/V8Isolate_limit_time_set_during_execution.phpt b/tests/V8Isolate_limit_time_set_during_execution.phpt
index e1ccd6b..00abfb5 100644
--- a/tests/V8Isolate_limit_time_set_during_execution.phpt
+++ b/tests/V8Isolate_limit_time_set_during_execution.phpt
@@ -17,18 +17,15 @@ $global_template1 = new V8\ObjectTemplate($isolate1);
 
 $context1 = new V8\Context($isolate1, $extensions1, $global_template1);
 
-// NOTE: this check is a bit fragile but should fits our need
-$needs_more_time = isset($_ENV['TRAVIS']) && isset($_ENV['TEST_PHP_ARGS']) && $_ENV['TEST_PHP_ARGS'] == '-m';
-
-if ($needs_more_time) {
+if ($helper->need_more_time()) {
     // On travis when valgrind active it takes more time to complete all operations so we just increase initial limits
     $time_limit = 5.0;
     $low_range = 4.5;
-    $high_range = 7.5;
+    $high_range = 10.0;
 } else {
     $time_limit = 1.5;
     $low_range = 1.45;
-    $high_range = 1.6;
+    $high_range = 1.65;
 }
 
 $func = new V8\FunctionObject($context1, function (\V8\FunctionCallbackInfo $info) use (&$helper, $time_limit) {