@bmp02050 the app does utilize multiple threads.
I am aware of the application pausing, and it is occurring on the QT client and during staking.
If you disable staking, it will operate as normal
I have been researching this for a while, and i believe we need to move use to the bitcoin ESDCA library rather OpenSSL for signing.
One of the benefits of this library is that it provides a much improved speed boost.
Indexing is a requirement for Reddcoin, it maintains a complete transaction list.
One thing that may help, and worth investigating is fragmentation of the HDD