# 🚨[Click here for workarounds](#issuecomment-2248940967)🚨
### DO NOT REMOVE …OR SKIP THE ISSUE TEMPLATE
- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field
### Checklist
- [X] I'm reporting that yt-dlp is broken on a **supported** site
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [ ] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required
### Region
_No response_
### Provide a description that is worded well enough to be understood
For the last couple of days I'm having constant throttling issues with Youtube downloads. It's the same on the latest public (2024.07.09) and nightly (2024.07.11) releases. I use yt-dlp by itself, with ytdlp-interface and with mpc-hc (I also use PotPlayer which has it's own way of delivering Youtube streams and it's also having trouble, but I don't know if it's relevant here). In all cases the speed I get is inconsistent, but consistently bad. It's usually hovering somewhere around 200KiB or lower, sometimes going up to 400-500 or having a rare spike of even faster speed. For some videos the base speed is better, for some it's worse, but I didn't had one downloading at a normal speed for a couple of days.
I've tried adding PhantomJS and I've stopped getting a warning about it, but the speed and it's inconsistency didn't really improved.
Also, when watching on the actual Youtube (in Firefox) I don't have any noticeable playback issues. It doesn't feel any slower to load the video or skip around.
### Provide verbose output that clearly demonstrates the problem
- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [ ] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below
### Complete Verbose Output
```shell
[debug] Command-line config: ['-vU', 'https://www.youtube.com/watch?v=e8ehi-1FwUU']
[debug] User config "C:\Users\User\AppData\Roaming\yt-dlp\config": ['-o', 'c:/users/user/desktop/%(title)s.%(ext)s', '-r', '999K', '-f', '136+140', '--cookies-from-browser', 'firefox:ko0oafee.default-release']
[debug] Encodings: locale cp1251, fs utf-8, pref cp1251, out utf-8 (No VT), error utf-8 (No VT), screen utf-8 (No VT)
[debug] yt-dlp version nightly@2024.07.11.232833 from yt-dlp/yt-dlp-nightly-builds [cc1a3098c] (win_exe)
[debug] Python 3.8.10 (CPython AMD64 64bit) - Windows-7-6.1.7601-SP1 (OpenSSL 1.1.1k 25 Mar 2021)
[debug] exe versions: ffmpeg 4.2, phantomjs 2.1.1
[debug] Optional libraries: Cryptodome-3.20.0, brotli-1.1.0, certifi-2024.07.04, curl_cffi-0.7.0, mutagen-1.47.0, requests-2.32.3, sqlite3-3.35.5, urllib3-2.2.2, websockets-12.0
[debug] Proxy map: {}
Extracting cookies from firefox
[debug] Extracting cookies from: "C:\Users\User\AppData\Roaming\Mozilla\Firefox\Profiles\ko0oafee.default-release\cookies.sqlite"
Extracted 1195 cookies from firefox
[debug] Request Handlers: urllib, requests, websockets, curl_cffi
[debug] Loaded 1834 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp-nightly-builds/releases/latest
Latest version: nightly@2024.07.11.232833 from yt-dlp/yt-dlp-nightly-builds
yt-dlp is up to date (nightly@2024.07.11.232833 from yt-dlp/yt-dlp-nightly-builds)
[youtube] Extracting URL: https://www.youtube.com/watch?v=e8ehi-1FwUU
[youtube] e8ehi-1FwUU: Downloading webpage
[debug] [youtube] Extracted SAPISID cookie
[youtube] e8ehi-1FwUU: Downloading ios player API JSON
[debug] [youtube] Extracting signature function js_8d9f6215_109
[debug] Loading youtube-sigfuncs.js_8d9f6215_109 from cache
[debug] Loading youtube-nsig.8d9f6215 from cache
[debug] [youtube] Decrypted nsig mLbhvbt9lcHfXg2xqNA => LuTqjoDb154j6w
[debug] [youtube] Extracting signature function js_8d9f6215_105
[debug] Loading youtube-sigfuncs.js_8d9f6215_105 from cache
[debug] Loading youtube-nsig.8d9f6215 from cache
[debug] [youtube] Decrypted nsig VwS3V6ro-hTWB4onsBQ => TiCGZvfd9Iu7sA
[youtube] e8ehi-1FwUU: Downloading m3u8 information
[debug] Sort order given by extractor: quality, res, fps, hdr:12, source, vcodec:vp9.2, channels, acodec, lang, proto
[debug] Formats sorted by: hasvid, ie_pref, quality, res, fps, hdr:12(7), source, vcodec:vp9.2(10), channels, acodec, lang, proto, size, br, asr, vext, aext, hasaud, id
[info] e8ehi-1FwUU: Downloading 1 format(s): 136+140
[debug] Invoking http downloader on "https://rr4---sn-gvnuxaxjvh-n8vd.googlevideo.com/videoplayback?expire=1720824020&ei=dFyRZunLDKmqv_IP-b6yoAg&ip=109.237.236.140&id=o-AM6fE97szfyB0QHyf3y6DN1YA4URRH64SjJC64rZhhwb&itag=136&aitags=133%2C134%2C135%2C136%2C160%2C242%2C243%2C244%2C247%2C278%2C298%2C299%2C302%2C303&source=youtube&requiressl=yes&xpc=EgVo2aDSNQ%3D%3D&mh=kV&mm=31%2C29&mn=sn-gvnuxaxjvh-n8vd%2Csn-n8v7kn7y&ms=au%2Crdu&mv=m&mvi=4&pl=20&initcwndbps=762500&siu=1&bui=AXc671L83m4SFUlcVxtqgsp7NZrA6yPagMQZy6l7PiP0ih9BK1qnTI7BUYKV1c9hxg3JlZ-AhA&spc=NO7bAdTtcqmysz7c7NCgnLcxTzi2njcVfrLBjm2NE1z9FS2FaIfJnuWYFlCHAxBAr9gg_AaD8w&vprv=1&svpuc=1&mime=video%2Fmp4&ns=JfigxZQxmdTvHRE4Vq2DblMQ&rqh=1&gir=yes&clen=1747681569&dur=7075.066&lmt=1720670775794204&mt=1720802002&fvip=12&keepalive=yes&c=WEB&sefc=1&txp=7309224&n=TiCGZvfd9Iu7sA&sparams=expire%2Cei%2Cip%2Cid%2Caitags%2Csource%2Crequiressl%2Cxpc%2Csiu%2Cbui%2Cspc%2Cvprv%2Csvpuc%2Cmime%2Cns%2Crqh%2Cgir%2Cclen%2Cdur%2Clmt&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AHlkHjAwRAIgeOIdXTJjcTvAk9PwIS3A5aGcbhVVnZsYTlKWG2RWVHECIC8Oyalj5h856_nJR7m-2fNmKCewLUzWMFru6icAclOX&sig=AJfQdSswRAIgchPdmffm6X4IHBuPxVtCelmjO7C2FXe5_spuNvdBB9ECIHC2o8wPQXi56ujmLp5VMwdDdInJmD_BjmD6uhZj6ZT7"
[debug] File locking is not supported. Proceeding without locking
[download] Destination: c:\users\user\desktop\?#3rdAnniversaRyS?HOLOLIVE SONG KARAOKE ?? to CELEBRATE 3 YEARS HERE!!?3 Year Anniversary Stream?.f136.m
p4
[download] 0.3% of 1.63GiB at 85.55KiB/s ETA 05:31:27
```