diff --git a/dev/Knoin/Knoin.js b/dev/Knoin/Knoin.js
index a061f0925..a4b261090 100644
--- a/dev/Knoin/Knoin.js
+++ b/dev/Knoin/Knoin.js
@@ -153,7 +153,7 @@ function buildViewModel(ViewModelClass, vmScreen) {
 	return ViewModelClass && ViewModelClass.__vm;
 }
 
-function getScreenPopupViewModel(ViewModelClassToShow) {
+export function getScreenPopupViewModel(ViewModelClassToShow) {
 	return (buildViewModel(ViewModelClassToShow) && ViewModelClassToShow.__dom) && ViewModelClassToShow.__vm;
 }
 
@@ -175,15 +175,6 @@ export function showScreenPopup(ViewModelClassToShow, params = []) {
 	}
 }
 
-/**
- * @param {Function} ViewModelClassToShow
- * @returns {void}
- */
-export function warmUpScreenPopup(ViewModelClassToShow) {
-	const vm = getScreenPopupViewModel(ViewModelClassToShow);
-	vm && vm.onWarmUp && vm.onWarmUp();
-}
-
 /**
  * @param {Function} ViewModelClassToShow
  * @returns {boolean}
diff --git a/dev/Screen/User/MailBox.js b/dev/Screen/User/MailBox.js
index c445a3876..fcf1e02e5 100644
--- a/dev/Screen/User/MailBox.js
+++ b/dev/Screen/User/MailBox.js
@@ -15,7 +15,7 @@ import { FolderListMailBoxUserView } from 'View/User/MailBox/FolderList';
 import { MessageListMailBoxUserView } from 'View/User/MailBox/MessageList';
 import { MessageViewMailBoxUserView } from 'View/User/MailBox/MessageView';
 
-import { warmUpScreenPopup } from 'Knoin/Knoin';
+import { getScreenPopupViewModel } from 'Knoin/Knoin';
 
 import { AbstractScreen } from 'Knoin/AbstractScreen';
 
@@ -88,7 +88,7 @@ export class MailBoxUserScreen extends AbstractScreen {
 	onStart() {
 		if (!this.__started) {
 			super.onStart();
-			setTimeout(() => warmUpScreenPopup(ComposePopupView), 500);
+			setTimeout(() => getScreenPopupViewModel(ComposePopupView), 500);
 
 			addEventListener('mailbox.inbox-unread-count', e => {
 				FolderUserStore.foldersInboxUnreadCount(e.detail);
diff --git a/dev/View/Popup/Compose.js b/dev/View/Popup/Compose.js
index 3a0fb21ea..7ea0fdcea 100644
--- a/dev/View/Popup/Compose.js
+++ b/dev/View/Popup/Compose.js
@@ -748,12 +748,6 @@ class ComposePopupView extends AbstractViewPopup {
 		}
 	}
 
-	onWarmUp() {
-		if (this.modalVisibility && !this.modalVisibility()) {
-			this.editor(editor => editor.modeWysiwyg());
-		}
-	}
-
 	/**
 	 * @param {Function} fKoValue
 	 * @param {Array} emails
@@ -1146,6 +1140,8 @@ class ComposePopupView extends AbstractViewPopup {
 		ro.header = dom.querySelector('.b-header');
 		ro.toolbar = dom.querySelector('.b-header-toolbar');
 		ro.els = [dom.querySelector('.textAreaParent'), dom.querySelector('.attachmentAreaParent')];
+
+		this.editor(editor => editor.modeWysiwyg());
 	}
 
 	/**