[BUG] DISPLAY_SLEEP_MINUTES makes the UI sluggish

[dbuezas]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

When I enable DISPLAY_SLEEP_MINUTES, the UI becomes slow

Bug Timeline

I only recently tried this option.

Expected behavior

DISPLAY_SLEEP_MINUTES shouldn't affect UI performance

Actual behavior

When I enable DISPLAY_SLEEP_MINUTES, the UI becomes slow

Steps to Reproduce

1. Enable DISPLAY_SLEEP_MINUTES
2. ?
3. No profit

Version of Marlin Firmware

Sha: 08d4ba5 (20th of november)

Printer model

Ultimaker 2

Electronics

SKR 3

LCD/Controller

SSD1309

Other add-ons

No response

Bed Leveling

ABL 3-point

Your Slicer

Other (explain below)

Host Software

SD Card (headless)

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

I'm using software i2c from a #26433 and the u8lib optimisations from MarlinFirmware/U8glib-HAL#31, none of which should make any difference to this.
After enabling it, I reseted EEPROM and restarted for good measure.

Configuratioin.zip

[github-actions]

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This issue has had no activity for the last 90 days.
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[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.