Hello @ramyasam,
Thank you for reaching out,
I’m afraid that’s not possible.
The only way to use the classic customizer or old settings is to rollback to older versions for the time being: https://docs.oceanwp.org/article/805-oceanwp-theme-and-ocean-extensions-rollback-versions.
Just for your information, the old settings were custom PHP settings for the Customizer. The new version is using ReactJS, which is already integrated with WordPress.
I hope it helps.
Best Regards