S3ALTH-R32

only about the last few days it idles round 5 to 6 and as I accelerate it goes up to 8 sometimes above 8 could it be the oil which is 15 50 or I just found a lil looseness in my bov

Hi everyone ive got an r32 Gts-t and i would really like to get some help on this topic My dash keeps showing me that my oil pressure when i turn my car on the needle is up above 8 and when i drive it drops to about 6 but in the last 2 days every time i accelarate it sends it back up above 8 sometimes on 8, Does any one know what this problem could be? Thanks