Dashboard slow on mobile

[KlausJokisuo]

Versions

Core version is v6.0 (Latest: v6.0)
Web version is v6.0 (Latest: v6.0)
FTL version is v6.0 (Latest: v6.0)

Platform

PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)"
NAME="Raspbian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"

Expected behavior

Desktop and Mobile should behave with same performance

Actual behavior / bug

When using pi-hole dashboard on mobile, everything loads very slow..

Steps to reproduce

Steps to reproduce the behavior:

1. Open pi-hole dashboard on mobile
2. Navigate within the dashboard

On desktop everything works smoothly

Debug log

https://tricorder.pi-hole.net/DQb6ekBr/

Screenshots

ScreenRecording_02-19-2025.08-26-43_1.MP4

[ckbaxter]

I have the same Issue on my iPad with Chrome.

[mana825]

I was able to narrow it down to an issue with https:// on the Safari browser as I am having the same issue on my Mac (os sequoia 15.3.1) only with Safari and ssl. using http:// only the web interface responds quick.

[KlausJokisuo]

For me, it doesn’t matter whether I use HTTP or HTTPS; it is still extremely slow on mobile, while it is fast on desktop.

[lwrcase]

I'm observing the same behavior on MacOS/Safari. Checking the Web Inspector Developer Tools, it looks like there are some CORS issues only present on MacOS/iOS/Safari.

Clicking on a navigation item twice in a row causes it to load immediately.

[DL6ER]

Please try whether

sudo pihole-FTL --config webserver.threads 16

on your Pi-hole makes a difference. You can also use the web interface, navigate to Settings, enable "Expert" mode (top right toggle), then go to "All Settings" and change this setting under "Webserver and API".