Slowness on all Nextcloud pages with Splash Dashboard Background Enabled.

[Coji4000]

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• This is not a feature request
• This is not an image-provider request
• I have searched the issuetracker if the issue is not already reported.

Describe the bug:
When I enable Splash backgrounds on my [Nextcloud Hub 9] (30.0.2) instance (running the AIO) my page load times skyrocket. 2.5 seconds without Splash. 13.9 seconds once enabled. I am using Wallhaven.CC but I experience this with wikimedia as well. I did a full re-installation of my nextcloud while triaging the slow connection and as soon as i reinstalled and enabled Splash my page becomes unbearably slow to load.

To Reproduce:
Steps to reproduce the behavior:

1. Enable Dev Tools in your browser.
2. Choose Network Tab
3. With Network Tab open navigate to nextcloud URL
4. Note Load Time listed in upper left of Network tab
5. Go to Administration Settings
6. Click on Theming
   7 Enable login screen and dashboard background in Splash
7. Assign wallhaven.cc and use keyword technology
8. With Network Tab open navigate back to dashboard tab
9. Note (in my case) exponentially longer load times hanging on the img loads inside the dashboard.css

Expected behavior:
similar load times to directly accessing the image on wallhaven.cc

Screenshots:

Server:

• Nextcloud version: [Nextcloud Hub 9] (30.0.2) AIO
• Splash-App version: 3.0.3

Additional Information:
Operating System: Linux 6.1.118-Unraid x86_64
CPU: AMD Ryzen 7 5800X 8-Core Processor (16 threads)
Memory: 31.29 GB
eth0
Status: up
Speed: 10 Gbps (Duplex: full) (1GB actual connection speed)
Active apps.txt

I'll be testing combinations of plugins to see if I can find some other plugin aggravating Splash. Will provide any useful/relevant updates if any are found.