Solution:

• Clear cache and cookies: Clear your browser's cache and cookies or try logging in with a different browser.
• Check server resources: If you're on shared hosting, your server may be under heavy load. Consider upgrading to VPS or dedicated hosting for better performance.
• Check for background processes: Background tasks like backups or system updates can slow down cPanel. Monitor these through your hosting provider or cPanel.
• Optimize your website: Poorly optimized websites or heavy applications on your server may be consuming too many resources. Try optimizing your website's performance.