[Q] topic

HI there i've flashed the [ROM][JB 4.2.2] Xperia Style FINAL- with Ac!d audio engine[Stable | Fast ] [20/07/13] on my galaxy gt i9000 and everything seems to work fines especially the walkman but after i ran a clean master on my device for cleaning the junks parts the walkman seems a bit laggy and sometimes it just switch off the device by itself, should i reflash the rom again or is there any other solution for this? i need advice please !!!!