Lagging live tv and dvd player

My specs:

Operating System
Microsoft Windows 8 Pro 64-bit
CPU
AMD Phenom II X4 965 49 °C
Deneb 45nm Technology
RAM
8,00 GB Dual-Channel DDR3 @ 665MHz (9-9-9-24)
Motherboard
ASRock 970 Extreme4 (CPUSocket) 34 °C
Graphics
LG TV (1360x768@60Hz) (HDMI)
AMD Radeon HD 6670 (ATI AIB)
Hard Drives
466GB Western Digital WDC WD5000BEVT-60ZAT1 ATA Device (SATA) 39 °C
112GB OCZ-AGILITY3 ATA Device (SSD) 30 °C
Optical Drives
HL-DT-ST DVDRAM GH40N ATA Device
Audio
High Definition Audio Device


And now to my problem, whenever I want to watch an live tv HD channel the channel is seriously lagging, the same Happens when I try to watch a DVD.
But watching regular channels (not HD) there isn't any problems

When I watch the Live tv HD channels in my backend MediaPortal there isn't any problems, the same goes for the dvd, watching that with VLC isn't any problem?


I have been everywhere searching for a solution tryet everything but nothing has worked.



My logs

http://pastebin.com/cGSZcihS


Thank you in advance