diff --git a/.changeset/silly-eagles-grow.md b/.changeset/silly-eagles-grow.md
new file mode 100644
index 0000000000..89cbe18d03
--- /dev/null
+++ b/.changeset/silly-eagles-grow.md
@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `selector-id-pattern` performance
diff --git a/lib/rules/selector-id-pattern/index.js b/lib/rules/selector-id-pattern/index.js
index e22c6ef74d..c89280a786 100644
--- a/lib/rules/selector-id-pattern/index.js
+++ b/lib/rules/selector-id-pattern/index.js
@@ -31,7 +31,7 @@ const rule = (primary) => {
 
 		const normalizedPattern = isString(primary) ? new RegExp(primary) : primary;
 
-		root.walkRules((ruleNode) => {
+		root.walkRules(/#/, (ruleNode) => {
 			if (!isStandardSyntaxRule(ruleNode)) {
 				return;
 			}