Slow upload files for Wordpress: Page 2 - Enhance Control Panel

Slow upload files for Wordpress

adil

For the Control Panel server, Did you try to switch the Webserver to NGINX ? And give it another try.

ferrokot

I have tried only Apache and OpenLiteSpeed as for control panel as for the server where the website is located. After my tests I see that main server for CP not relared for that issue because when I uploaded from Filemanager or via the WordPress admin panel, I had the same small speed or the same behaviour when it's not upload more then 2mb for both methods.... and WP admin pannel dont have relations with Control Panel server . So the problem should be on the server where the website is located.

adil

PDudeP

adil several months ago that did the trick. But now, it doesn't seem to be related.
I tried, though.

adil

ferrokot

Yes I know, I just replied to @PDudeP issue because I had the same one before and NGINX works better for the Control Panel server.

As for your issue, sorry, didn't have any suggestion rather than to open a support ticket maybe Adam can help narrow down the cause of the issue.

nhybgtvfr

tried a couple of uploads/downloads.
using panel file manager, scp and ftp on both a system website on control panel server and on a client website on a webserver.
both small test servers at hetzner.. 2cpu 4gb.. nginx as webserver on both

used the same file each time (440Mb)

scp uploaded file to each server in around 10 seconds... sshd rose to around 30% cpu, scp to around 10%
upload took around 10 seconds
ftp (only to ciient website, ftp not available on system website)

during upload pure-ftpd spiked to around 33%cpu then steady around 15%
upload took around 30 seconds
download took around 30 seconds pure-ftpd around 3% cpu

scp, upload and download took around 30 seconds
sshd around 30%cpu scp around 10% on upload, sshd around 8% scp around 3% on download

enhance file manager, upload takes several minutes
filerd constant around 5% cpu
download takes around 30 seconds, filerd initially spikes to around 60% cpu then drops to negligible and stays there.
i assume the download is initially started by filerd and then handed off to nginx...

ferrokot

nhybgtvfr so what to do? Your suggestion is to use Nginx? from my side it's 100% not related with CPU usage.
Thanks for the tests, but how can it resolve the problem? There is no problem with FTP.

I didn't test with nginx because I'm not going to use it.

Still waiting @Adam response, maybe you can suggest something
Will appreciate that a lot
thanks everybody

ferrokot

One more time, I tested this issue.
Only settings on the server where the website is located affect on behaviour - so when I use:

Apache - upload 2MB max files (without mod security)
Openlitespeed - upload bigger files with speed _2MB/s, sometimes restricts speed to 600KB/s, sometimes it works like Apache and doesn't upload files more than 2MB, so behaviour is different.
NGINX - upload _6Mb/s and any problems except my provider's internet speed 🙂

cPFence - guys, maybe your team can help with this.

cPFence

ferrokot

It’s a long-standing problem with all file managers across different panels. They’ve never been reliable for large file transfers and are really only meant for small to medium-sized files.

Even cPanel has had the same issue for 11 years and still hasn’t fixed it:
https://support.cpanel.net/hc/en-us/community/posts/19262470541335-CPANEL-43121-File-downloads-from-cPanel-s-File-Manager-are-weirdly-slow

If you’ve got a 1 Gbps connection, you can get away with it, but otherwise it’s better to stick with SSH or SFTP, or spin up a temporary HTTP link with a unique filename if you need to serve big files.

ferrokot

cPFence

Thanks for the reply, but the problem is not in the file manager, it's a global problem. I tried to upload files for all-in-one, or for updraft, also the problem is when the client tries to upload an image more than 2MB or PDF file for 10-20mb.
All of I mentioned above isnt related with Enhance filemanager... it's related with wordpress admin pannel functionality.

So also if clients website have a form with attachment for CV as example it start to be a problem too... and one way to resolve this it's using NGINX... so it's a little strange and I think that it should be fixed, maybe I did somehting wrong, but I'm new and have a basic setup and dont use any custom settings, customisations, scurity things etc.

JohnB

Yeah but in 2025 downloading a 500MB file shouldn't be an issue in a new platform. Enhance is capable of better.

Idk what they are doing wrong but I've seen 2MB file uploads fail and then you reload the page and upload a 10MB file without any issue.... I'd hate to be an average user scared of SMTP/FTP and trying to edit their functions.php or something.

cPFence

JohnB Enhance is capable of better.

Maybe, but it’s really down to the design pattern. When a control panel web app proxies the transfer, everything flows through the panel layer, which adds overhead and slows things down.

Protocols like direct HTTP downloads, FTP, or SFTP bypass that application layer (and its strict security rules) and use optimized transfer paths. That’s why they’ll almost always be faster and more reliable for large files.

cPFence

ferrokot

Working fine here. I’d double-check your PHP settings (upload_max_filesize, post_max_size, etc.). If everything looks correct and you’re still hitting the issue, best to open a ticket with Enhance so they can dig deeper.

ferrokot

cPFence
Thanks, I will try to do something in the next days and then will open a ticket.

Vendoz

ferrokot I gave up on this 😃 I can confirm your data: upload speed in my webservers (OLS) isn't fast (but not super slow either), so I'll stick with it, since 99% of the time you don't upload large files via web, it's just boring when you have to upload large wp backups from backend.

By using NGINX in the control panel, I can confirm that the uploads are better on the control panel side (and not only the upload, the panel is definitely more responsive), so for me it's fine, but I agree that there could be some bottlenecks in the configuration (webserver side, not panel).

jonte

some things you can do:

increase the number of php threds.
if you use bitninja, stop the service and try again. Is realtime scanning can be slow sometime.
use a clean account and put a php file for uploadning. this way you can rule out wordpress
I don't know if enhance uses lvectl or selectorctl but check the values.. In speed I have had massive improvment with
lvectl set-user XXX --io=10240 --save-username

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