@Chetan.BG Thanks for reply here!
Sure, Scale up should help but this need further drilling down-
High CPU usage is a common performance issue that can impact the responsiveness of a site in Azure App Service. To address high CPU issues in Azure App Service suggest you to refer this detailed blog Azure App Service Limit (4) - CPU (Windows)
You may also check these troubleshooting videos that can guide customers on troubleshooting common issues on Azure App Service.
To troubleshoot high CPU - watch this video - https://youtu.be/hxB0JaQk2Z8
More links- https://azure.github.io/AppService/2020/10/05/Diagnose-App-with-High-CPU.html
Please let us know if you are still facing issue and require further assistance, happy to assist.