Slow Workflow and System characteristics

Dears

I 'm facing struggles to run Workflows with kind of 23 Mil row and 83 Column, in the same time there are SAP_HANA Designer also running a queries.

It happened that every thing freeze suddenly and nothing work. the execution sometime takes hours to run ! and the DATA App connected became very slow

hereunder Screen of the System characteristics.

is there anything i can enhance?