diff --git a/README.md b/README.md
index 1c8a2ef..9c1add4 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ A Python-based Windows CLI tool to download karaoke videos from YouTube channels
 - 🧹 **Reset/Clear Channel**: Reset all tracking and files for a channel, or clear channel cache via CLI
 - 🗂️ **Latest-per-channel download**: Download the latest N videos from each channel in a single batch, with a per-channel download plan, robust resume, and unique plan cache. Use --latest-per-channel and --limit N.
 - 🧩 **Fuzzy Matching**: Optionally use fuzzy string matching for songlist-to-video matching (with --fuzzy-match, requires rapidfuzz for best results)
+- ⚡ **Fast Mode with Early Exit**: When a limit is set, scans channels and songs in order, downloads immediately when a match is found, and stops as soon as the limit is reached with successful downloads
+- 🔄 **Deduplication Across Channels**: Ensures the same song is not downloaded from multiple channels, even if it appears in more than one channel's video list
+- 📋 **Default Channel File**: Automatically uses data/channels.txt as the default channel list for songlist modes (no need to specify --file every time)
 
 ## 📋 Requirements
 - **Windows 10/11**
@@ -30,14 +33,19 @@ A Python-based Windows CLI tool to download karaoke videos from YouTube channels
 python download_karaoke.py https://www.youtube.com/@SingKingKaraoke/videos
 ```
 
-### Download from a List of Channels
+### Download Only Songlist Songs (Fast Mode)
 ```bash
-python download_karaoke.py --file data/channels.txt
+python download_karaoke.py --songlist-only --limit 5
 ```
 
-### Download Only Songlist Songs
+### Download with Fuzzy Matching
 ```bash
-python download_karaoke.py --songlist-only
+python download_karaoke.py --songlist-only --limit 10 --fuzzy-match --fuzzy-threshold 85
+```
+
+### Download Latest N Videos Per Channel
+```bash
+python download_karaoke.py --latest-per-channel --limit 5
 ```
 
 ### Prioritize Songlist in Download Queue
@@ -60,11 +68,6 @@ python download_karaoke.py --limit 5
 python download_karaoke.py --resolution 1080p
 ```
 
-### Download Latest N Videos Per Channel
-```bash
-python download_karaoke.py --file data/channels.txt --latest-per-channel --limit 5
-```
-
 ### **Reset/Start Over for a Channel**
 ```bash
 python download_karaoke.py --reset-channel SingKingKaraoke
@@ -134,11 +137,11 @@ KaroakeVideoDownloader/
 ```
 
 ## 🚦 CLI Options
-- `--file <data/channels.txt>`: Download from a list of channels
+- `--file <data/channels.txt>`: Download from a list of channels (optional, defaults to data/channels.txt for songlist modes)
 - `--songlist-priority`: Prioritize songlist songs in download queue
 - `--songlist-only`: Download only songs from the songlist
 - `--songlist-status`: Show songlist download progress
-- `--limit <N>`: Limit number of downloads
+- `--limit <N>`: Limit number of downloads (enables fast mode with early exit)
 - `--resolution <720p|1080p|...>`: Override resolution
 - `--status`: Show download/tracking status
 - `--reset-channel <CHANNEL_NAME>`: **Reset all tracking and files for a channel**
@@ -150,9 +153,16 @@ KaroakeVideoDownloader/
 
 ## 📝 Example Usage
 ```bash
-python download_karaoke.py https://www.youtube.com/@SingKingKaraoke/videos --songlist-priority --limit 10
-python download_karaoke.py --file data/channels.txt --songlist-only
-python download_karaoke.py --songlist-status
+# Fast mode with fuzzy matching (no need to specify --file)
+python download_karaoke.py --songlist-only --limit 10 --fuzzy-match --fuzzy-threshold 85
+
+# Latest videos per channel
+python download_karaoke.py --latest-per-channel --limit 5
+
+# Traditional full scan (no limit)
+python download_karaoke.py --songlist-only
+
+# Channel-specific operations
 python download_karaoke.py --reset-channel SingKingKaraoke
 python download_karaoke.py --reset-channel SingKingKaraoke --reset-songlist
 python download_karaoke.py --clear-cache all