Question my gpu is lagging

[crimson123123123]

I have motherboard ASUS P8H61-M LX3 R2.0
I was running it with its integrated gpu, then i bought asus gt 730 d3 2gb and i put it in, when i switched to the new gpu, pc became way slower and couldn't run games that integrated could, can anyone give me solution for this?

 

[rgd1101]

full system spec? include make and model of the psu