diff --git a/app/javascript/controllers/card_size_controller.js b/app/javascript/controllers/card_size_controller.js
deleted file mode 100644
index e688358da..000000000
--- a/app/javascript/controllers/card_size_controller.js
+++ /dev/null
@@ -1,43 +0,0 @@
-import { Controller } from "@hotwired/stimulus"
-
-const SIZES = [ "one", "two", "three", "four", "five" ]
-
-export default class extends Controller {
-  static targets = [ "card" ]
-
-  connect() {
-    this.resize()
-  }
-
-  resize() {
-    const [ min, max ] = this.#getScoreRange()
-
-    this.cardTargets.forEach(card => {
-      const score = this.#currentCardScore(card)
-      const idx = Math.round((score - min) / (max - min) * (SIZES.length - 1))
-
-      card.style.setProperty("--card-size", `var(--card-size-${SIZES[idx]})`)
-    })
-  }
-
-  #getScoreRange() {
-    var min = 0, max = 1;
-
-    this.cardTargets.forEach(card => {
-      const score = this.#currentCardScore(card)
-
-      min = Math.min(min, score)
-      max = Math.max(max, score)
-    })
-
-    return [ min, max ]
-  }
-
-  #currentCardScore(el) {
-    const score = el.dataset.activityScore
-    const scoreAt = el.dataset.activityScoreAt
-    const daysAgo = (Date.now() / 1000 - scoreAt) / (60 * 60 * 24)
-
-    return score / (2**daysAgo)
-  }
-}
diff --git a/app/views/cards/index/engagement/_doing.html.erb b/app/views/cards/index/engagement/_doing.html.erb
index e59c70700..216866e85 100644
--- a/app/views/cards/index/engagement/_doing.html.erb
+++ b/app/views/cards/index/engagement/_doing.html.erb
@@ -1,4 +1,4 @@
-<section id="doing-cards" class="cards cards--doing" style="view-transition-name: cards-container;" data-controller="card-size" data-action="turbo:morph@window->card-size#resize">
+<section id="doing-cards" class="cards cards--doing" style="view-transition-name: cards-container;">
   <% if workflow = filter.single_workflow %>
     <%= render "cards/index/workflow_filter", workflow: workflow, filter: filter %>
   <% else %>