Google's Google phone dialer app can sometimes become sluggish or fail entirely due in part to issues with the underlying operating system rather than any fault within the application itself.

One way of resolving such problems is by clearing out all cached data and settings associated directly from your device’s Settings menu:

1. Go into “Settings.”

2. Scroll down until you see an option labeled as 'Apps' or depending on what version of Android you're running it might simply say just 'Application Manager'.

3. Look through the list for any entries that have names starting with either 'com.google' followed by something like '.phone' etceter without touching anything yet!

4. Tap on each entry once found then select “Clear Cache” followed immediately after by tapping again but this time selecting instead only “Clear Data”. This will completely wipe out all stored information related to these particular apps so proceed carefully!

If clearing cache and data doesn't resolve the issue, you can try using a third-party dialer app like Simple Dialer. Unlike Google's Phone app, Simple Dialer does not ask for permission to access or modify your files and media or location data. It also doesn't require SMS privileges.

Here are some benefits of switching from Google’s default phone app:

1. Privacy: Since you don’t need to grant permissions for accessing various features like contacts or call logs, using a third-party dialer can be more private.

2. Customization options: Third-party apps often offer more customization options compared to the stock version provided by manufacturers.

To install Simple Dialer on your device:

1. Open Google Play Store and search for 'Simple Dialer.'

2. Tap Install once you find it in the results list at top of page next button.

3. Follow prompts until installation is complete; then launch app from home screen or drawer depending upon how you organize applications there.

Once installed, simply tap on its icon to start using an alternative dialing interface without relying solely upon Google's own offerings anymore!