diff --git a/easy-coding-standard.neon b/easy-coding-standard.neon
index c78cfa5ad25..9b985f054ce 100644
--- a/easy-coding-standard.neon
+++ b/easy-coding-standard.neon
@@ -5,11 +5,13 @@ includes:
 
 checkers:
     # Slevomat
-    - SlevomatCodingStandard\Sniffs\ControlStructures\DisallowEqualOperatorsSniff
     - SlevomatCodingStandard\Sniffs\ControlStructures\YodaComparisonSniff
     - SlevomatCodingStandard\Sniffs\Exceptions\DeadCatchSniff
     - SlevomatCodingStandard\Sniffs\Exceptions\ReferenceThrowableOnlySniff
-    - SlevomatCodingStandard\Sniffs\Namespaces\ReferenceUsedNamesOnlySniff
+    SlevomatCodingStandard\Sniffs\Namespaces\ReferenceUsedNamesOnlySniff:
+        allowPartialUses: false
+        allowFullyQualifiedNameForCollidingClasses: false
+        allowFullyQualifiedGlobalClasses: true
     - SlevomatCodingStandard\Sniffs\Classes\UnusedPrivateElementsSniff
 
     # Files
@@ -22,9 +24,9 @@ checkers:
     # Code Analysis
     - PHP_CodeSniffer\Standards\Generic\Sniffs\CodeAnalysis\EmptyStatementSniff
     PHP_CodeSniffer\Standards\Generic\Sniffs\Metrics\CyclomaticComplexitySniff:
-        absoluteComplexity: 10
+        absoluteComplexity: 5
     PHP_CodeSniffer\Standards\Generic\Sniffs\Metrics\NestingLevelSniff:
-        absoluteNestingLevel: 5
+        absoluteNestingLevel: 2
 
     # Naming Conventions
     - PHP_CodeSniffer\Standards\Generic\Sniffs\NamingConventions\CamelCapsFunctionNameSniff
@@ -43,13 +45,10 @@ checkers:
     PhpCsFixer\Fixer\Operator\ConcatSpaceFixer:
         spacing: one
     - PhpCsFixer\Fixer\ClassNotation\OrderedClassElementsFixer
-    - PhpCsFixer\Fixer\LanguageConstruct\DirConstantFixer
-    - PhpCsFixer\Fixer\CastNotation\ModernizeTypesCastingFixer
     - PhpCsFixer\Fixer\Semicolon\SemicolonAfterInstructionFixer
     - PhpCsFixer\Fixer\Operator\NotOperatorWithSuccessorSpaceFixer
     - PhpCsFixer\Fixer\ControlStructure\NoUselessElseFixer
     - PhpCsFixer\Fixer\ReturnNotation\NoUselessReturnFixer
-    - PhpCsFixer\Fixer\LanguageConstruct\CombineConsecutiveUnsetsFixer
     - PhpCsFixer\Fixer\Strict\StrictComparisonFixer
     PhpCsFixer\Fixer\Phpdoc\GeneralPhpdocAnnotationRemoveFixer:
         annotations:
@@ -62,7 +61,8 @@ checkers:
 
     # new since PhpCsFixer 2.2-2.4
     - PhpCsFixer\Fixer\Phpdoc\PhpdocReturnSelfReferenceFixer
-    - PhpCsFixer\Fixer\LanguageConstruct\IsNullFixer
+    PhpCsFixer\Fixer\LanguageConstruct\IsNullFixer:
+        use_yoda_style: false
     - PhpCsFixer\Fixer\Basic\NonPrintableCharacterFixer
     - PhpCsFixer\Fixer\Phpdoc\PhpdocTypesOrderFixer
     - PhpCsFixer\Fixer\Comment\SingleLineCommentStyleFixer
\ No newline at end of file
diff --git a/src/NodeVisitor/DependencyInjection/NamedServicesToConstructor/GetterToPropertyNodeVisitor.php b/src/NodeVisitor/DependencyInjection/NamedServicesToConstructor/GetterToPropertyNodeVisitor.php
index caaf9e7c573..18384bd4c7f 100644
--- a/src/NodeVisitor/DependencyInjection/NamedServicesToConstructor/GetterToPropertyNodeVisitor.php
+++ b/src/NodeVisitor/DependencyInjection/NamedServicesToConstructor/GetterToPropertyNodeVisitor.php
@@ -8,6 +8,7 @@ use PhpParser\Node\Expr\MethodCall;
 use PhpParser\Node\Expr\PropertyFetch;
 use PhpParser\Node\Expr\Variable;
 use PhpParser\Node\Scalar\String_;
+use PhpParser\Node\Stmt\Class_;
 use PhpParser\NodeVisitorAbstract;
 use Rector\Builder\Class_\ClassPropertyCollector;
 use Rector\Builder\Kernel\ServiceFromKernelResolver;
@@ -60,7 +61,7 @@ final class GetterToPropertyNodeVisitor extends NodeVisitorAbstract
     public function beforeTraverse(array $nodes): ?array
     {
         foreach ($nodes as $node) {
-            if ($node instanceof Node\Stmt\Class_) {
+            if ($node instanceof Class_) {
                 $this->className = (string) $node->name;
             }
         }
@@ -96,11 +97,9 @@ final class GetterToPropertyNodeVisitor extends NodeVisitorAbstract
     {
         // $var = $this->get('some_service');
         // $var = $this->get('some_service')->getData();
-        if ($node instanceof Assign) {
-            if ($node->expr instanceof MethodCall || $node->var instanceof MethodCall) {
-                if ($this->isContainerGetCall($node->expr)) {
-                    return true;
-                }
+        if ($node instanceof Assign && ($node->expr instanceof MethodCall || $node->var instanceof MethodCall)) {
+            if ($this->isContainerGetCall($node->expr)) {
+                return true;
             }
         }
 
diff --git a/src/NodeVisitor/UpgradeDeprecation/DeprecatedParentClassToTraitNodeVisitor.php b/src/NodeVisitor/UpgradeDeprecation/DeprecatedParentClassToTraitNodeVisitor.php
index fd062c67484..2a4c9c214e1 100644
--- a/src/NodeVisitor/UpgradeDeprecation/DeprecatedParentClassToTraitNodeVisitor.php
+++ b/src/NodeVisitor/UpgradeDeprecation/DeprecatedParentClassToTraitNodeVisitor.php
@@ -4,6 +4,7 @@ namespace Rector\NodeVisitor\UpgradeDeprecation;
 
 use PhpParser\Node;
 use PhpParser\Node\Name\FullyQualified;
+use PhpParser\Node\Stmt\Class_;
 use PhpParser\Node\Stmt\TraitUse;
 use PhpParser\NodeTraverser;
 use PhpParser\NodeVisitorAbstract;
@@ -35,7 +36,7 @@ final class DeprecatedParentClassToTraitNodeVisitor extends NodeVisitorAbstract
 
     private function isCandidate(Node $node): bool
     {
-        if ($node instanceof Node\Stmt\Class_) {
+        if ($node instanceof Class_) {
             if (! $node->extends) {
                 return false;
             }
@@ -51,7 +52,7 @@ final class DeprecatedParentClassToTraitNodeVisitor extends NodeVisitorAbstract
         return false;
     }
 
-    private function refactor(Node\Stmt\Class_ $classNode): void
+    private function refactor(Class_ $classNode): void
     {
         // remove parent class
         $classNode->extends = null;