Performance Issues in Angular Fire 6.1 and higher

### Version info

**Angular:** 13.3

**Firebase:** 9.14

**AngularFire:** 7.2

### How to reproduce these conditions

Create a collection query using the compat mode matching a lot of documents. In our case the query matched 2500 documents. Use the `stateChanges` method on the query and subscribe to it.

Locally trigger an update on one of the documents matched by the query.

### Expected behavior

The listener should update in a performant manner when a state change is detected as was the case in Angular Fire 6.0.5

### Actual behavior

Angular Fire triggers a very long running task. In my scenario tasks lasted more than 4 seconds causing the application to freeze. This behavior can be observed on all versions of Angular Fire > 6.0.5

首先，使用 stateChanges 和約 2,500 個相符文件重現 compat-mode 下的 collection 查詢，然後將其行為與 AngularFire 6.0.5 進行比較。完成的標準是識別並解決這個長時間執行的 task，使更新單一文件不再凍結應用程式。

由索引模型根據 Issue 內容生成。