Hi there! I understand you're having trouble copying text in the Blue Letter Bible app, it's running very slow, and the "Remind Me" button won’t let you click. Let's see if we can get this sorted out together.

First, could you tell me:
- Are you using the Blue Letter Bible app specifically, or accessing the website in your WebKit browser on Windows 10?
- Has this issue just started recently, or has it been ongoing for a while?
- Have you tried any steps already, like restarting the app or your device?

Meanwhile, here are some initial troubleshooting steps tailored to your setup:

1. Clear Browser Cache: Since you're on WebKit browser with Windows 10, cached data might cause slowness or button unresponsiveness. Try clearing your browser cache and cookies.
- In most WebKit browsers, you can do this by pressing Ctrl + Shift + Delete, choosing to clear browsing data (cache and cookies) for at least the past 24 hours, then restart the browser.

2. Check Internet Connection: A slow or unstable connection might cause issues with copying or loading app features. Try visiting another website or running a speed test to confirm stable connectivity.

3. Disable Browser Extensions: Sometimes extensions interfere with site functionality. Temporarily disable any browser extensions and try again.

4. Update Browser: Make sure your WebKit browser is up to date, as outdated browsers may cause performance or compatibility problems.

If you're using the Blue Letter Bible app on a mobile device, steps would differ slightly, but since you mentioned WebKit and Windows 10, I assume it’s browser-based.

If none of these help, let me know if the issue is only on certain pages or verses when copying, or if the whole site is slow and unresponsive. Also, whether the "Remind Me" button is on a particular page or feature. This info will help narrow down further.

Are you okay to try these and let me know how it goes?