Very slow Hash

[Casiosteed]

Apologies for the noob questions, I'm using HashcatGUI with hascat3.4 to crack two Office 2013 Hash. I've already extracted the hash using office2john.
I have an intel 4790k and an AMD Radeon R9 Nano.
But I'm only getting 3931H/s.
This seems very low?
I have an issue where it says my CPU isn't OpenCL native, I've tried updating windows drivers and downloaded OpenCL separately. Same error even after restarting computer. So I used --force to ignore warnings, yes the warnings no longer appear but the hash is still slow.
Can anyone give me any advice?
Thanks in advance

[atom]

Office 2013 Hash *is* that slow. Your CPU issue doesn't have an influence on it.

[Casiosteed]

Office 2013 Hash *is* that slow. Your CPU issue doesn't have an influence on it.

Ah ok, thank you for response.
Any way round it?
I've just finished running a dictionary hash and got nothing, worried I can;t brute force it as it takes years at these speeds.

[atom]

Buy lots of hardware