Documentation updates from Promptless

Author: promptless[bot]

fern/products/cli-api-reference/pages/cli-get-started.mdx

@@ -36,6 +36,50 @@ fern generate --group ts-sdk     # Generate specific SDK group
 The "default SDK group" refers to the group marked as default in your `generators.yml`. Learn more about [default groups](/learn/sdks/introduction/configuration).
 </Note>
 
+## Performance Optimization
+
+For improved performance, you can install Fern CLI as a local project dependency:
+
+<Steps>
+<Step title="Install as project dependency">
+
+Add `fern-api` to your project dependencies:
+
+```bash
+npm install fern-api
+```
+
+</Step>
+
+<Step title="Update configuration">
+
+In your `fern.config.json`, set the version to `*`:
+
+```json fern.config.json
+{
+  "version": "*"
+}
+```
+
+</Step>
+
+<Step title="Run via package manager">
+
+Use npm to run Fern commands:
+
+```bash
+npm fern check        # Validate API definition
+npm fern --version    # Check CLI version
+npm fern generate     # Generate outputs
+```
+
+</Step>
+</Steps>
+
+<Tip>
+This approach uses your project-specific version of Fern CLI, which can improve performance and ensure consistency across your team.
+</Tip>
+
 ## Common Workflows
 
 <AccordionGroup>