My HDD is reading slow after new PSU

Jan 23, 2019
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hi, today bought a brand new PSU be quiet! system power 9 80 PLUS bronze for my GPU RX 470 8GB and after i installed it my HDD is reading slower... any solutions ?
Specs:
MOBO gigabyte b85-hd3-a
cpu: intel i5-4460
 
Which model "be quiet! system power 9 80 PLUS bronze" ? 700W, 600W, 500W, 400W ?
How are you measuring HDD slowness?
Any screenshots illustrating the problem?
 
Jan 23, 2019
19
0
10

500W and i noticed it because i saw how my cars in FH4 are loading when i want to change it and my game is lag spikening really hard but i dont have any pictures