AC800M Softcontroller taking 15-20min download time for FuD project

Hi,

We are using the below mentioned virtual system and we are finding system is taking 15-20min for download of soft controller.

Windows - 2016 Server 64Bit
Ram Size - 64GB
800xA - 6.0.3
Library: Utility
Programming: Function Diagrams
Application: 2
Diagrams: 1250
Controller: PM891
Softcontroller heap size: 900MB (Max)

Currently project is in development stage. We are using 1 sofcontroller to do testing. For download system is taking average of 15-20min.

Let us know the how we can reduce the download time?

Thanks