Hi. I have a HP Compaq 6710b with TPM and a Intel Core DUO 2 GHz microprocessor. It is an old computer(2008?), with Windows 7 Ultimate, and I wish to know if Bitlocker encryption will slow down my system very much. My hard drive is a SSD Samsung 860 EVO (fast), but perhaps Bitlocker slows down CPU... I think hardware encription with my SSD is not possible with such old computer.