diff --git a/src/components/Responses/Response.tsx b/src/components/Responses/Response.tsx
index bc6ece8b..d9c11d32 100644
--- a/src/components/Responses/Response.tsx
+++ b/src/components/Responses/Response.tsx
@@ -1,40 +1,47 @@
-import { observer } from 'mobx-react';
 import * as React from 'react';
+import { observer } from 'mobx-react';
 
-import { ResponseModel } from '../../services/models';
+import type { ResponseModel, MediaTypeModel } from '../../services/models';
 import { ResponseDetails } from './ResponseDetails';
 import { ResponseDetailsWrap, StyledResponseTitle } from './styled.elements';
 
-@observer
-export class ResponseView extends React.Component<{ response: ResponseModel }> {
-  toggle = () => {
-    this.props.response.toggle();
-  };
-
-  render() {
-    const { extensions, headers, type, summary, description, code, expanded, content } = this.props.response;
-    const mimes =
-      content === undefined ? [] : content.mediaTypes.filter(mime => mime.schema !== undefined);
-
-    const empty = (!extensions || Object.keys(extensions).length === 0) &&
-      headers.length === 0 && mimes.length === 0 && !description;
-
-    return (
-      <div>
-        <StyledResponseTitle
-          onClick={this.toggle}
-          type={type}
-          empty={empty}
-          title={summary || ''}
-          code={code}
-          opened={expanded}
-        />
-        {expanded && !empty && (
-          <ResponseDetailsWrap>
-            <ResponseDetails response={this.props.response} />
-          </ResponseDetailsWrap>
-        )}
-      </div>
-    );
-  }
+export interface ResponseViewProps {
+  response: ResponseModel;
 }
+
+export const ResponseView = observer(({ response }: ResponseViewProps): React.ReactElement => {
+  const { extensions, headers, type, summary, description, code, expanded, content } = response;
+
+  const mimes = React.useMemo<MediaTypeModel[]>(
+    () =>
+      content === undefined ? [] : content.mediaTypes.filter(mime => mime.schema !== undefined),
+    [content],
+  );
+
+  const empty = React.useMemo<boolean>(
+    () =>
+      (!extensions || Object.keys(extensions).length === 0) &&
+      headers.length === 0 &&
+      mimes.length === 0 &&
+      !description,
+    [extensions, headers, mimes, description],
+  );
+
+  return (
+    <div>
+      <StyledResponseTitle
+        onClick={response.toggle}
+        type={type}
+        empty={empty}
+        title={summary || ''}
+        code={code}
+        opened={expanded}
+      />
+      {expanded && !empty && (
+        <ResponseDetailsWrap>
+          <ResponseDetails response={response} />
+        </ResponseDetailsWrap>
+      )}
+    </div>
+  );
+});
diff --git a/src/components/Responses/ResponseTitle.tsx b/src/components/Responses/ResponseTitle.tsx
index 74e07a39..812bbccd 100644
--- a/src/components/Responses/ResponseTitle.tsx
+++ b/src/components/Responses/ResponseTitle.tsx
@@ -14,27 +14,34 @@ export interface ResponseTitleProps {
   onClick?: () => void;
 }
 
-export class ResponseTitle extends React.PureComponent<ResponseTitleProps> {
-  render() {
-    const { title, type, empty, code, opened, className, onClick } = this.props;
-    return (
-      <button
-        className={className}
-        onClick={(!empty && onClick) || undefined}
-        aria-expanded={opened}
-        disabled={empty}
-      >
-        {!empty && (
-          <ShelfIcon
-            size={'1.5em'}
-            color={type}
-            direction={opened ? 'down' : 'right'}
-            float={'left'}
-          />
-        )}
-        <Code>{code} </Code>
-        <Markdown compact={true} inline={true} source={title} />
-      </button>
-    );
-  }
+function ResponseTitleComponent({
+  title,
+  type,
+  empty,
+  code,
+  opened,
+  className,
+  onClick,
+}: ResponseTitleProps): React.ReactElement {
+  return (
+    <button
+      className={className}
+      onClick={(!empty && onClick) || undefined}
+      aria-expanded={opened}
+      disabled={empty}
+    >
+      {!empty && (
+        <ShelfIcon
+          size={'1.5em'}
+          color={type}
+          direction={opened ? 'down' : 'right'}
+          float={'left'}
+        />
+      )}
+      <Code>{code} </Code>
+      <Markdown compact={true} inline={true} source={title} />
+    </button>
+  );
 }
+
+export const ResponseTitle = React.memo<ResponseTitleProps>(ResponseTitleComponent);
diff --git a/src/components/Responses/styled.elements.ts b/src/components/Responses/styled.elements.ts
index 531236dd..7e456870 100644
--- a/src/components/Responses/styled.elements.ts
+++ b/src/components/Responses/styled.elements.ts
@@ -11,14 +11,12 @@ export const StyledResponseTitle = styled(ResponseTitle)`
   border-radius: 2px;
   margin-bottom: 4px;
   line-height: 1.5em;
-  background-color: #f2f2f2;
   cursor: pointer;
 
   color: ${props => props.theme.colors.responses[props.type].color};
   background-color: ${props => props.theme.colors.responses[props.type].backgroundColor};
   &:focus {
-    outline: auto;
-    outline-color: ${props => props.theme.colors.responses[props.type].color};
+    outline: auto ${props => props.theme.colors.responses[props.type].color};
   }
   ${props =>
     (props.empty &&
diff --git a/src/services/__tests__/models/Response.test.ts b/src/services/__tests__/models/Response.test.ts
index 48633619..26ec21b7 100644
--- a/src/services/__tests__/models/Response.test.ts
+++ b/src/services/__tests__/models/Response.test.ts
@@ -42,9 +42,16 @@ describe('Models', () => {
 
     test('ensure extensions are shown if showExtensions is true', () => {
       const options = new RedocNormalizedOptions({ showExtensions: true });
-      const resp = new ResponseModel(parser, 'default', true, { 'x-example': {a: 1} } as any, options);
+      const resp = new ResponseModel({
+        parser,
+        code: 'default',
+        defaultAsError: true,
+        infoOrRef: { 'x-example': { a: 1 } },
+        options,
+        isEvent: true,
+      });
       expect(Object.keys(resp.extensions).length).toEqual(1);
-      expect(resp.extensions['x-example']).toEqual({a: 1});
+      expect(resp.extensions['x-example']).toEqual({ a: 1 });
     });
   });
 });
diff --git a/src/services/models/RequestBody.ts b/src/services/models/RequestBody.ts
index b7f209d6..18780a58 100644
--- a/src/services/models/RequestBody.ts
+++ b/src/services/models/RequestBody.ts
@@ -17,8 +17,7 @@ export class RequestBodyModel {
   required: boolean;
   content?: MediaContentModel;
 
-  constructor(props: RequestBodyProps) {
-    const { parser, infoOrRef, options, isEvent } = props;
+  constructor({ parser, infoOrRef, options, isEvent }: RequestBodyProps) {
     const isRequest = !isEvent;
     const info = parser.deref(infoOrRef);
     this.description = info.description || '';
diff --git a/src/services/models/Response.ts b/src/services/models/Response.ts
index a0878093..77159a8a 100644
--- a/src/services/models/Response.ts
+++ b/src/services/models/Response.ts
@@ -2,10 +2,7 @@ import { action, observable, makeObservable } from 'mobx';
 
 import { OpenAPIResponse, Referenced } from '../../types';
 
-import {
-  getStatusCodeType,
-  extractExtensions
-} from '../../utils';
+import { getStatusCodeType, extractExtensions } from '../../utils';
 import { OpenAPIParser } from '../OpenAPIParser';
 import { RedocNormalizedOptions } from '../RedocNormalizedOptions';
 import { FieldModel } from './Field';
@@ -32,9 +29,14 @@ export class ResponseModel {
   headers: FieldModel[] = [];
   extensions: Record<string, any>;
 
-  constructor(props: ResponseProps) {
-    const { parser, code, defaultAsError, infoOrRef, options, isEvent } = props;
-    const isRequest = isEvent ? true : false;
+  constructor({
+    parser,
+    code,
+    defaultAsError,
+    infoOrRef,
+    options,
+    isEvent: isRequest,
+  }: ResponseProps) {
     makeObservable(this);
 
     this.expanded = options.expandResponses === 'all' || options.expandResponses[code];