diff --git a/README.md b/README.md
index b6e3a54..bba211b 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ A ComfyUI custom node that brings a **DAW-style interactive video timeline** dir
 
 ## Installation
 
-### Via ComfyUI Manager *(recommended)*
+### Via ComfyUI Manager _(recommended)_
 
 1. Open **ComfyUI Manager → Custom Nodes → Search**
 2. Search for `Video Frame Extractor`
@@ -43,13 +43,13 @@ Restart ComfyUI after installation.
 
 ## Requirements
 
-| Package | Version |
-|---|---|
-| Python | ≥ 3.9 |
-| opencv-python | ≥ 4.7 |
-| Pillow | ≥ 9.0 |
-| numpy | ≥ 1.22 |
-| torch | (provided by ComfyUI) |
+| Package       | Version               |
+| ------------- | --------------------- |
+| Python        | ≥ 3.9                 |
+| opencv-python | ≥ 4.7                 |
+| Pillow        | ≥ 9.0                 |
+| numpy         | ≥ 1.22                |
+| torch         | (provided by ComfyUI) |
 
 ---
 
@@ -58,23 +58,23 @@ Restart ComfyUI after installation.
 [![Watch the video](https://img.youtube.com/vi/vsk4-RGSdnA/maxresdefault.jpg)](https://youtu.be/vsk4-RGSdnA)
 
 1. Place a video file in `ComfyUI/input/` or upload one directly via the **Choose Video to Upload** button on the node
-2. Add the **Video Frame Extractor 🎞️** node to your graph *(right-click canvas → Add Node → video)*
+2. Add the **Video Frame Extractor 🎞️** node to your graph _(right-click canvas → Add Node → video)_
 3. Select your video from the dropdown — the timeline populates automatically
 4. **Drag the indigo loop handles** to set the extraction window, or drag the loop body to pan the whole window
 5. Connect the output pins to your workflow
 
 ### Timeline Controls
 
-| Interaction | Action |
-|---|---|
-| Drag loop handle (◀ ▶) | Resize the loop window |
-| Drag loop body | Slide the window without changing its span |
-| ▶ / ⏸ button | Play or pause the preview within the loop |
-| ◀ / ▶ step buttons | Shift the entire loop window one frame |
-| Scroll wheel | Zoom the timeline centred on the cursor |
-| Shift + scroll | Pan the timeline left / right |
-| Drag resize bar | Adjust the height of the video preview |
-| Click collapse toggle | Show / hide the video preview and transport |
+| Interaction            | Action                                      |
+| ---------------------- | ------------------------------------------- |
+| Drag loop handle (◀ ▶) | Resize the loop window                      |
+| Drag loop body         | Slide the window without changing its span  |
+| ▶ / ⏸ button           | Play or pause the preview within the loop   |
+| ◀ / ▶ step buttons     | Shift the entire loop window one frame      |
+| Scroll wheel           | Zoom the timeline centred on the cursor     |
+| Shift + scroll         | Pan the timeline left / right               |
+| Drag resize bar        | Adjust the height of the video preview      |
+| Click collapse toggle  | Show / hide the video preview and transport |
 
 ---
 
@@ -82,61 +82,67 @@ Restart ComfyUI after installation.
 
 ### Inputs
 
-| Name | Type | Description |
-|---|---|---|
-| `video` | File picker | MP4, AVI, MOV, MKV, or WebM file |
-| `start_frame` | INT | Loop region start (auto-set by timeline) |
-| `end_frame` | INT | Loop region end (auto-set by timeline) |
-| `num_frames` | INT | Frames to extract — **read-only, auto-computed** as end − start + 1 |
+| Name          | Type        | Description                                                         |
+| ------------- | ----------- | ------------------------------------------------------------------- |
+| `video`       | File picker | MP4, AVI, MOV, MKV, or WebM file                                    |
+| `start_frame` | INT         | Loop region start (auto-set by timeline)                            |
+| `end_frame`   | INT         | Loop region end (auto-set by timeline)                              |
+| `num_frames`  | INT         | Frames to extract — **read-only, auto-computed** as end − start + 1 |
 
 ### Outputs
 
-| Name | Type | Description |
-|---|---|---|
-| `frames` | IMAGE | Batch of extracted frames, forward order `(N, H, W, 3)` |
-| `frames_reversed` | IMAGE | Same batch in reverse order — useful for ping-pong effects |
-| `first_frame` | IMAGE | Single frame at the loop start `(1, H, W, 3)` |
-| `last_frame` | IMAGE | Single frame at the loop end `(1, H, W, 3)` |
-| `filename_prefix` | STRING | Video filename without extension, e.g. `my_clip` |
-| `width` | INT | Video width in pixels |
-| `height` | INT | Video height in pixels |
-| `fps` | FLOAT | Source frame rate |
+| Name              | Type   | Description                                                |
+| ----------------- | ------ | ---------------------------------------------------------- |
+| `frames`          | IMAGE  | Batch of extracted frames, forward order `(N, H, W, 3)`    |
+| `frames_reversed` | IMAGE  | Same batch in reverse order — useful for ping-pong effects |
+| `first_frame`     | IMAGE  | Single frame at the loop start `(1, H, W, 3)`              |
+| `last_frame`      | IMAGE  | Single frame at the loop end `(1, H, W, 3)`                |
+| `filename_prefix` | STRING | Video filename without extension, e.g. `my_clip`           |
+| `width`           | INT    | Video width in pixels                                      |
+| `height`          | INT    | Video height in pixels                                     |
+| `fps`             | FLOAT  | Source frame rate                                          |
 
 ---
 
 ## Example Workflows
 
 ### Basic frame extraction
+
 ```
 Video Frame Extractor → VAE Encode → KSampler
 ```
+
 Feed a batch of video frames directly into a KSampler for video-to-video workflows.
 
 ### Ping-pong loop
+
 ```
 Video Frame Extractor (frames) ──────────────→ ┐
                                                Batch Concat → Video Combine
 Video Frame Extractor (frames_reversed) ──────→ ┘
 ```
+
 Concatenate forward and reversed frame batches to create a seamless loop.
 
 ### Use filename as save prefix
+
 ```
 Video Frame Extractor (filename_prefix) → Save Image (filename_prefix input)
 ```
+
 Automatically name saved frames after the source video.
 
 ---
 
 ## Supported Formats
 
-| Format | Extension |
-|---|---|
-| MP4 / H.264 | `.mp4` |
-| AVI | `.avi` |
-| QuickTime | `.mov` |
-| Matroska | `.mkv` |
-| WebM | `.webm` |
+| Format      | Extension |
+| ----------- | --------- |
+| MP4 / H.264 | `.mp4`    |
+| AVI         | `.avi`    |
+| QuickTime   | `.mov`    |
+| Matroska    | `.mkv`    |
+| WebM        | `.webm`   |
 
 Any format supported by your OpenCV build will also work.
 
@@ -145,6 +151,7 @@ Any format supported by your OpenCV build will also work.
 ## Changelog
 
 ### 1.0.0
+
 - Initial release
 - DAW-style timeline with filmstrip thumbnails and brightness waveform
 - Loop region with drag handles and live video scrubbing
@@ -154,6 +161,13 @@ Any format supported by your OpenCV build will also work.
 - Zoom and pan on the timeline
 - `start_frame` / `end_frame` spinners sync bidirectionally with the loop region
 
+### 1.1.0
+
+- Reduced video file opens from 6 → 2 per execution
+- Halved peak memory during frame extraction by pre-allocating output buffer
+- first_frame / last_frame now sliced from loaded batch instead of re-read from disk
+- Fixed BytesIO buffer in thumbnail endpoint now explicitly closed after use
+
 ---
 
 ## License