1. Run time error
2. Performance issues, slowness
3. Patches not getting installed
4. Change workflow not integrated
5. Reports not synced

Do we need to pay or subscribe for higher fees to get the Fusion performance up and running fast always like requesting them to scale up and down dynamically add more RAM to our instance when load is more and less when load is less. Elasticity.Is this possible?

Fusion prod should be very fast is the demand from our team.

Fusion is fast and users need not pay high charges for performance. Cloud is designed to provide rapid elasticity and high performance. Please check with your network admin if you have performance issues.