Logbook-card performance extremely slow when combined with layout-cards

Can someone please explain why there’s a >600% performance difference between the two examples below? They both display the same exact information. I would much more prefer to use the second example below (single layout-card) if it didn’t take so long; since I can adjust the width of the card. However, it’s unusably slow. Is there any way I can get the second example to display instantly like the first one?

Each sensor pulls the last 10 Android notifications from the Home Assistant Android app via webhooks:


Displays all four cards instantly when I open the respective View: (4 separates cards)

entity: sensor.sm_a505u_last_notification
max_items: 10
hiddenState:
  - ''
collapse: 5
title: 1 - Notifications
show:
  separator: true
separator_style:
  color: '#5B5048'
  style: dashed
type: 'custom:logbook-card'
------------------------------------------------------------------

entity: sensor.pvg100_last_notification
max_items: 10
hiddenState:
  - ''
collapse: 5
title: 2 - Notifications
show:
  separator: true
separator_style:
  color: '#5B5048'
  style: dashed
type: 'custom:logbook-card'
------------------------------------------------------------------

entity: sensor.kfsuwi_last_notification
max_items: 10
hiddenState:
  - ''
collapse: 5
title: 3 - Notifications
show:
  separator: true
separator_style:
  color: '#5B5048'
  style: dashed
type: 'custom:logbook-card'
------------------------------------------------------------------

entity: sensor.sm_n960u_last_notification
max_items: 10
hiddenState:
  - ''
collapse: 5
title: 4 - Notifications
show:
  separator: true
separator_style:
  color: '#5B5048'
  style: dashed
type: 'custom:logbook-card'


Takes 4-6 seconds to display the same information as above example: (Panel mode: single layout-card)

type: 'custom:layout-card'
layout: vertical
min_width: 66%
column_width: 66%
cards:
  - type: 'custom:logbook-card'
    title: 1 - Notifications
    entity: sensor.sm_a505u_last_notification
    max_items: 10
    hiddenState:
      - ''
    collapse: 5
    show:
      separator: true
    separator_style:
      color: '#5B5048'
      style: dashed
  - break
  - type: 'custom:logbook-card'
    title: 2 - Notifications
    entity: sensor.pvg100_last_notification
    max_items: 10
    hiddenState:
      - ''
    collapse: 5
    show:
      separator: true
    separator_style:
      color: '#5B5048'
      style: dashed
  - break
  - type: 'custom:logbook-card'
    title: 3 - Notifications
    entity: sensor.kfsuwi_last_notification
    max_items: 10
    hiddenState:
      - ''
    collapse: 5
    show:
      separator: true
    separator_style:
      color: '#5B5048'
      style: dashed
  - break
  - type: 'custom:logbook-card'
    title: 4 - Notifications
    entity: sensor.sm_n960u_last_notification
    max_items: 10
    hiddenState:
      - ''
    collapse: 5
    show:
      separator: true
    separator_style:
      color: '#5B5048'
      style: dashed