diff --git a/apps/client/src/widgets/collections/interface.ts b/apps/client/src/widgets/collections/interface.ts
index bd80b4afd..118599260 100644
--- a/apps/client/src/widgets/collections/interface.ts
+++ b/apps/client/src/widgets/collections/interface.ts
@@ -5,6 +5,8 @@ export type ViewTypeOptions = typeof allViewTypes[number];
 
 export type ViewModeMedia = "screen" | "print";
 
+export type ProgressChangedFn = (progress: number) => void;
+
 export interface ViewModeProps<T extends object> {
     note: FNote;
     notePath: string;
@@ -17,5 +19,5 @@ export interface ViewModeProps<T extends object> {
     saveConfig(newConfig: T): void;
     media: ViewModeMedia;
     onReady(): void;
-    onProgressChanged?(progress: number): void;
+    onProgressChanged?: ProgressChangedFn;
 }
diff --git a/apps/client/src/widgets/collections/presentation/index.tsx b/apps/client/src/widgets/collections/presentation/index.tsx
index ca236a46c..0a3d36f65 100644
--- a/apps/client/src/widgets/collections/presentation/index.tsx
+++ b/apps/client/src/widgets/collections/presentation/index.tsx
@@ -14,14 +14,14 @@ import { t } from "../../../services/i18n";
 import { DEFAULT_THEME, loadPresentationTheme } from "./themes";
 import FNote from "../../../entities/fnote";
 
-export default function PresentationView({ note, noteIds, media, onReady }: ViewModeProps<{}>) {
+export default function PresentationView({ note, noteIds, media, onReady, onProgressChanged }: ViewModeProps<{}>) {
     const [ presentation, setPresentation ] = useState<PresentationModel>();
     const containerRef = useRef<HTMLDivElement>(null);
     const [ api, setApi ] = useState<Reveal.Api>();
     const stylesheets = usePresentationStylesheets(note, media);
 
     function refresh() {
-        buildPresentationModel(note).then(setPresentation);
+        buildPresentationModel(note, onProgressChanged).then(setPresentation);
     }
 
     useTriliumEvent("entitiesReloaded", ({ loadResults }) => {
diff --git a/apps/client/src/widgets/collections/presentation/model.ts b/apps/client/src/widgets/collections/presentation/model.ts
index 92b7ffe76..f1c6cef77 100644
--- a/apps/client/src/widgets/collections/presentation/model.ts
+++ b/apps/client/src/widgets/collections/presentation/model.ts
@@ -1,6 +1,7 @@
 import { NoteType } from "@triliumnext/commons";
 import FNote from "../../../entities/fnote";
 import contentRenderer from "../../../services/content_renderer";
+import { ProgressChangedFn } from "../interface";
 
 type DangerouslySetInnerHTML = { __html: string; };
 
@@ -22,14 +23,26 @@ export interface PresentationModel {
     slides: PresentationSlideModel[];
 }
 
-export async function buildPresentationModel(note: FNote): Promise<PresentationModel> {
+export async function buildPresentationModel(note: FNote, onProgressChanged?: ProgressChangedFn): Promise<PresentationModel> {
     const slideNotes = await note.getChildNotes();
-    const slides: PresentationSlideModel[] = await Promise.all(slideNotes.map(async slideNote => ({
-        ...(await buildSlideModel(slideNote)),
-        verticalSlides: note.type !== "search" ? await buildVerticalSlides(slideNote) : undefined
-    })));
+    onProgressChanged?.(0.3);
+    const total = slideNotes.length;
+    let completed = 0;
 
+    const slidePromises = slideNotes.map(slideNote => (async () => {
+        const base = await buildSlideModel(slideNote);
+        const verticalSlides = note.type !== "search" ? await buildVerticalSlides(slideNote) : undefined;
+        const slide: PresentationSlideModel = { ...base, verticalSlides };
+        completed++;
+        onProgressChanged?.(Math.min(0.3 + (completed / total) * 0.4, 0.7));
+        return slide;
+    })());
+
+    const slides: PresentationSlideModel[] = await Promise.all(slidePromises);
+
+    onProgressChanged?.(0.7);
     postProcessSlides(slides);
+    onProgressChanged?.(1);
     return { slides };
 }