diff --git a/.jules/bolt.md b/.jules/bolt.md
index 91541609..094e503a 100644
--- a/.jules/bolt.md
+++ b/.jules/bolt.md
@@ -9,3 +9,8 @@
 
 **Learning:** Using `on:keyup` for search input debouncing triggers unnecessary API calls on navigation keys (arrows, home, end) and misses changes from paste/cut. Svelte's reactive statements `$: debounce(value)` provide a robust, declarative way to trigger debouncing only when the value actually changes.
 **Action:** Replace `on:keyup` handlers with reactive statements for input debouncing to improve performance and correctness.
+
+## 2024-10-25 - Array Sort Callback Optimization
+
+**Learning:** Creating temporary arrays or using object destructuring inside an `Array.prototype.sort()` callback (e.g., `[a, b][condition ? 'slice' : 'reverse']()`) introduces heavy Garbage Collection overhead and slows down operations.
+**Action:** Always refactor sorting logic to use straightforward scalar variable assignments and mathematical negations (e.g., multiplying by -1) for descending order.
diff --git a/src/routes/profile/DomainsTable.svelte b/src/routes/profile/DomainsTable.svelte
index c42bda5a..07e7964d 100644
--- a/src/routes/profile/DomainsTable.svelte
+++ b/src/routes/profile/DomainsTable.svelte
@@ -29,11 +29,15 @@
 
 	function handleSort() {
 		domains.sort((a, b) => {
-			const [aVal, bVal] = [a[sort], b[sort]][
-				sortDirection === 'ascending' ? 'slice' : 'reverse'
-			]();
-			if (typeof aVal === 'string' && typeof bVal === 'string') return aVal.localeCompare(bVal);
-			return Number(aVal) - Number(bVal);
+			// Optimization: Avoid temporary array creation for performance.
+			const aVal = a[sort];
+			const bVal = b[sort];
+			const direction = sortDirection === 'ascending' ? 1 : -1;
+
+			if (typeof aVal === 'string' && typeof bVal === 'string') {
+				return aVal.localeCompare(bVal) * direction;
+			}
+			return (Number(aVal) - Number(bVal)) * direction;
 		});
 		domains = domains;
 	}