docs(performance): Add note about performance issue quota (#12113)

* Add note about performance issue pricing

* nit

* Update docs/product/performance/index.mdx

Co-authored-by: Liza Mock <[email protected]>

---------

Co-authored-by: Liza Mock <[email protected]>

Author: snigdhas

docs/product/performance/index.mdx

@@ -40,6 +40,14 @@ There are several types of [metrics](/product/performance/metrics/) that you can
 
 ## Triage Performance Issues
 
+<Note>
+
+**Issue and Event Quotas**
+
+Your quota is consumed by events or traces, not issues. Performance issues are generated from your accepted transactions, which **doesn't** directly impact your quota. Performance transaction events use transactions, which **does** directly impact your quota. Sentry provides tools to control the type and number of error and transaction events that are accepted. Learn more in [Quota Management](/pricing/quotas/manage-transaction-quota).
+
+</Note>
+
 If your application is configured for Performance Monitoring, Sentry will detect common performance problems, and group them into issues just like it does with errors. Performance issues help to surface performance problems in your application and provide a workflow for resolving them. Learn more about [performance issues](/product/issues/issue-details/performance-issues/).
 
 ## Learn More