Hi,

Are you able to help me to find the reason my GUI is so slow? Switching between pages on Unraid for example from Dashboard to Main can take up to 5 seconds.

I didn't have this problem before.

Thanks

unraid-diagnostics-20251106-1149.zip

Is it the same in safe mode?

Hi JorgeB,

It's still slower than before, think around 1 second instead of 4

The strangest thing is, my Backupserver has the same config, but is not running docker. That GUI is blazing fast

1 hour ago, TallMan206 said:

instead of 4

I don't see anything in the video taking 4 seconds to show, can you clarify?

That was in safe mode. This video is in normal mode.

My backupserver is less powerful, and has the same plugins (no docker) and does NOT have this issue.

If safe mode is faster, it suggests a plugin is the problem.

Same plugins like before. Never had a problem. It's the last couple of weeks, after updating to 7.2 that it is slow. You can see my main and backupserver next to each other. Where my main takes 4-5 seconds, the backupserver take less then a second.

17 hours ago, JorgeB said:

If safe mode is faster, it suggests a plugin is the problem.

You can try uninstalling one at a time until you find the culprit.

Clearly, the Unassigned Devices plugin, especially the Preclear, and the settings of the plugin, caused a lot of polling, making the GUI slow.
Also, the IPMI plugin for my Dell R720, polling for temps and fan speeds, adds up to this slowness of the GUI.

Removing Preclear (I don't need it at the moment), and changing some settings in the Unassigned Devices plugin made the GUI quicker to a bearable level.

Just updated from 6.12.15 to 7.2.1 and the WebUI is pretty slow sometimes. It's intermittent, can load for like 20 seconds, sometimes like 4 seconds, sometimes it's instant. Pre-update it was pretty much instant no matter what.

Edited November 23, 2025Nov 23 by jlw_4049

In my case, it turned out to be a plugin acting up, causing the Unraid Dashboard to load extremely slowly. All other sections of the GUI (Main, Shares, etc.) loaded normally, but my Dashboard took 20+ seconds.

Root Cause The Tailscale plugin was in a weird state that was causing the main Dashboard page to wait for its response and ultimately timeout at 20 seconds, evidenced by the Network tab in Chrome DevTools

Solution Deleted & reinstalled Tailscale plugin

Edited December 8, 2025Dec 8 by smoresrock

I’m also experiencing this GUI lag. I’ve performed extensive testing and downgrades, and the issue consistently appears in versions 7.20 through 7.23.

Performance Comparison

Version Range	Response Time (Browser Network Tab)	User Experience
v7.20 - v7.23	1s - 2s	Noticeably sluggish
v7.14 (and below)	~200ms (mostly under 500ms)	Extremely fast/Snappy

Troubleshooting Performed:

• Clean Slate: Restored plugin settings and kept only pool configurations — No effect.

• Plugin Removal: Deleted all plugins entirely — No effect.

• Minimal Load: Even with the array stopped and no Docker/VMs running, the lag persists.

Interesting Note: A friend of mine is running v7.23 with perfectly normal response times.

To isolate the issue, I created a brand-new system USB flash drive. This clean installation works flawlessly on different hardware. However, when using this same clean drive on my production hardware, the WebUI lag persists. This confirms the issue is not related to my previous configuration or plugins, but rather a compatibility conflict between the new OS environment and my specific hardware components.

tower-diagnostics-20260209-1752.zip

2 hours ago, Hiccup said:

works flawlessly on different hardware

What is the difference in the hardware?

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-819173

2 hours ago, Hiccup said:

but rather a compatibility conflict between the new OS environment and my specific hardware components.

Yep, seen that before; another user had an issue with a specific Asus board.

12 hours ago, trurl said:

硬件方面有什么区别？

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-819173

No problem：

Motherboard:[ ASUS b85 tuf ]

CPU: [ E3-1231 V3 ]

GUI Slow:

Motherboard:[ Gigabyte MZ32-AR0 ] The BIOS has been updated to the latest version.

CPU：[ EYPC-7D12 ]

I plan to check the BIOS C-States settings.

I've disabled Global C-state in BIOS, but the WebUI is still lagging

12 hours ago, JorgeB said:

是的，之前也遇到过这种情况；另一位用户也遇到过特定华硕主板的问题。

It doesn't affect usage at the moment, but it makes me a bit uncomfortable. The current delay is around 700ms to 1 second.

I have removed all plugins that could cause the GUI to be slow, but with the dockers that I am running I'm at 7 seconds load, on my Mainserver, and with the same configuration (but without dockers) my backupserver loads in lower than 1 second. What is docker doing that it causes the GUI to be so slow?

40 minutes ago, TallMan206 said:

I have removed all plugins that could cause the GUI to be slow, but with the dockers that I am running I'm at 7 seconds load, on my Mainserver, and with the same configuration (but without dockers) my backupserver loads in lower than 1 second. What is docker doing that it causes the GUI to be so slow?

Post diagnostics please

1 hour ago, TallMan206 said:

What is docker doing that it causes the GUI to be so slow?

Not very likely, but you can easily test by temporarily disabling the Docker service.

There have been a couple of reports of it being caused by a specific motherboard.

48 minutes ago, JorgeB said:

Not very likely, but you can easily test by temporarily disabling the Docker service.

There have been a couple of reports of it being caused by a specific motherboard.

I have a Dell R720 (main server (Epic-Alpha) and my backupserver is a Supermicro with a X9SCL/X9SCM motherboard.
I've added both diagnostics, so they can be compared.

epic-alpha-diagnostics-20260401-1628.zip epic-bravo-diagnostics-20260401-1442.zip

What happens if you use the stock go file?

1 hour ago, trurl said:

What happens if you use the stock go file?

Before I do that, I would love to understand your thoughts why a stock go file would make a difference? No to challenge, but to understand where your thoughts come from?

I would recommend retesting with a new flash drive using a stock install; no key needed, just boot with it a see the GUI speed. That will help rule out a config problem.