Reply to Latency setting for my windows pc

hi all just got a new pc was using a mac. starting to get drop outs just wondering what the correct way of changing it is.

at the moment it says processing is 5.8ms - output is 4.6ms overall 10.4ms

Latency is saying 256

also where it says build in soundcard it just says please choose

also when i open the setting im not sure what to change it to?

and the multi-core is ticked

I have an I7 with 8gb of ram