diff --git a/src/reactions/RaisedHandIndicator.test.tsx b/src/reactions/RaisedHandIndicator.test.tsx
index 8463a625..6db9ada4 100644
--- a/src/reactions/RaisedHandIndicator.test.tsx
+++ b/src/reactions/RaisedHandIndicator.test.tsx
@@ -15,18 +15,18 @@ configure({
 });
 
 describe("RaisedHandIndicator", () => {
-  test("renders nothing when no hand has been raised", async () => {
+  test("renders nothing when no hand has been raised", () => {
     const { container } = render(<RaisedHandIndicator />);
     expect(container.firstChild).toBeNull();
   });
-  test("renders an indicator when a hand has been raised", async () => {
+  test("renders an indicator when a hand has been raised", () => {
     const dateTime = new Date();
     const { container } = render(
       <RaisedHandIndicator raisedHandTime={dateTime} />,
     );
     expect(container.firstChild).toMatchSnapshot();
   });
-  test("renders an indicator when a hand has been raised with the expected time", async () => {
+  test("renders an indicator when a hand has been raised with the expected time", () => {
     const dateTime = new Date(new Date().getTime() - 60000);
     const { container } = render(
       <RaisedHandIndicator raisedHandTime={dateTime} />,
diff --git a/src/reactions/RaisedHandIndicator.tsx b/src/reactions/RaisedHandIndicator.tsx
index 012fa571..ba7e8788 100644
--- a/src/reactions/RaisedHandIndicator.tsx
+++ b/src/reactions/RaisedHandIndicator.tsx
@@ -1,18 +1,26 @@
-import { useEffect, useState } from "react";
+/*
+Copyright 2024 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only
+Please see LICENSE in the repository root for full details.
+*/
+
+import { ReactNode, useEffect, useState } from "react";
+
 import styles from "./RaisedHandIndicator.module.css";
 
 export function RaisedHandIndicator({
   raisedHandTime,
 }: {
   raisedHandTime?: Date;
-}) {
+}): ReactNode {
   const [raisedHandDuration, setRaisedHandDuration] = useState("");
 
   useEffect(() => {
     if (!raisedHandTime) {
       return;
     }
-    const calculateTime = () => {
+    const calculateTime = (): void => {
       const totalSeconds = Math.ceil(
         (new Date().getTime() - raisedHandTime.getTime()) / 1000,
       );
@@ -22,8 +30,8 @@ export function RaisedHandIndicator({
         `${minutes < 10 ? "0" : ""}${minutes}:${seconds < 10 ? "0" : ""}${seconds}`,
       );
     };
-    const to = setInterval(calculateTime, 1000);
     calculateTime();
+    const to = setInterval(calculateTime, 1000);
     return (): void => clearInterval(to);
   }, [setRaisedHandDuration, raisedHandTime]);
 
diff --git a/src/tile/MediaView.tsx b/src/tile/MediaView.tsx
index 41a3bdc1..be2d4a62 100644
--- a/src/tile/MediaView.tsx
+++ b/src/tile/MediaView.tsx
@@ -8,13 +8,7 @@ Please see LICENSE in the repository root for full details.
 import { TrackReferenceOrPlaceholder } from "@livekit/components-core";
 import { animated } from "@react-spring/web";
 import { RoomMember } from "matrix-js-sdk/src/matrix";
-import {
-  ComponentProps,
-  ReactNode,
-  forwardRef,
-  useEffect,
-  useState,
-} from "react";
+import { ComponentProps, ReactNode, forwardRef } from "react";
 import { useTranslation } from "react-i18next";
 import classNames from "classnames";
 import { VideoTrack } from "@livekit/components-react";