Best Practices implementing SAP BI solution on high data volumetry environment

Dear Expert,

I am working for a big company having sap bi dataflow based on high data volumetry source system.

I would like to share with your experience what are the best practices to implement BI solution in this context.

1. Manage parallel loading process instead of sequential loading.

2. Eliminate not needed records.

3. Adjust system setting on DTP package size

4. Adjust system setting on DSO activation.

5. Improve ABAP performance.

Do you see any other useful point to take care / manage ?

Thanks,