matroska slow start

Matroska file info : D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv
File size : 139.36 MB
File complete : yes
Duration : 00:23:40.044
Writing application : mkvmerge v1.7.0 ('What Do You Take Me For') built on Apr 28 2006 17:20:19
Muxing application : libebml v0.7.7 + libmatroska v0.8.0
Date : 2006-04-14 01:10:07.000
Tracks : 2
Track 1 : Video
   - Codec : (V_MPEG4/ISO/AVC)
   - Language : Undetermined (und)
   - Pixel Width : 704
   - Pixel Height : 396
Track 2 : Audio
   - Codec : MPEG Audio 1, 2, 2.5 Layer III (A_MPEG/L3)
     - Possible filter : MP3 Fraunhofer Filter
       - Installed : yes, in C:\WINDOWS\system32\l3codecx.ax (1.5.0.50)
       - Install comments : Already installed with Windows.
   - Language : Japanese (jpn)
   - Sampling Frequency : 48000
   - Channels : 2

DirectShow RenderFile check : 
Matroska Splitter : Gabest's Matroska Splitter
   - Installed : no
   - Can be created : no
Matroska Splitter : Haali's New Matroska Splitter
   - Installed : yes, in C:\Programme\Combined Community Codec Pack\Filters\Haali\splitter.ax (1.7.77.5)
   - Can be created : yes
RenderFile with DirectShow : OK
Filters in graph: : 5
   - Default DirectSound Device - DirectSound Audio Renderer {79376820-07D0-11CF-A24D-0020AFD79767} - C:\WINDOWS\system32\quartz.dll (6.5.2600.2749)
   - Video Renderer - Video Mixing Renderer {B87BEB7B-8D29-423F-AE4D-6582C10175AC} - C:\WINDOWS\system32\quartz.dll (6.5.2600.2749)
   - ffdshow Audio Decoder {0F40E1E5-4F79-4988-B1A9-CC98794E6B55} - C:\Programme\Combined Community Codec Pack\Filters\FFDShow\ffdshow.ax (1.0.2.1997)
   - ffdshow MPEG-4 Video Decoder {04FE9017-F873-410E-871E-AB91661A4EF7} - C:\Programme\Combined Community Codec Pack\Filters\FFDShow\ffdshow.ax (1.0.2.1997)
   - D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv - Haali Media Splitter {55DA30FC-F16B-49FC-BAA5-AE59FC65F82D} - C:\Programme\Combined Community Codec Pack\Filters\Haali\splitter.ax (1.7.77.5)

DirectShow detailed rendering : 
0> MyRenderFile : D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv
15> Creation of GraphBuilder : OK
15> Creation of FilterMapper2 : OK
31> Adding graph to ROT : OK
531> Creation of source filter : OK
531> # Rendering output pin D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv(Video)
531> Filters matching mediatype : ffdshow MPEG-4 Video Decoder, DirectVobSub (auto-loading version), Video Renderer, CyberLink H.264/AVC Decoder (PDVD7), Nero Video Decoder, Nero DVD Decoder, AVI Decompressor, CyberLink MPEG-4 Splitter (PDVD7)
531> Trying connection to ffdshow MPEG-4 Video Decoder :
547> OK, connected to (In)ffdshow MPEG-4 Video Decoder
547> # Rendering output pin D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv(Video) -> ffdshow MPEG-4 Video Decoder(Out)
547> Filters matching mediatype : ffdshow MPEG-4 Video Decoder, DirectVobSub (auto-loading version), Video Renderer, Nero Video Decoder, Nero DVD Decoder, AVI Decompressor, CyberLink MPEG-4 Splitter (PDVD7)
547> Trying connection to DirectVobSub (auto-loading version) :
578> Failed connecting pin to DirectVobSub (auto-loading version), removing it now.
578> Trying connection to Video Renderer :
656> OK, connected to (VMR Input0)Video Renderer
656> Completed path : D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv(Video) -> ffdshow MPEG-4 Video Decoder(Out) -> Video Renderer
656> # Rendering output pin D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv(Audio)
656> Filters matching mediatype : ffdshow Audio Decoder, MPEG Layer-3 Decoder, DirectVobSub (auto-loading version), ACM Wrapper, Nero Audio Decoder 2, CyberLink MPEG-4 Splitter (PDVD7)
656> Trying connection to ffdshow Audio Decoder :
672> OK, connected to (In)ffdshow Audio Decoder
672> # Rendering output pin D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv(Audio) -> ffdshow Audio Decoder(Out)
672> Filters matching mediatype : AC3Filter, ffdshow Audio Decoder, DirectVobSub (auto-loading version), Default DirectSound Device, MainConcept (Sonavis) MPEG Splitter, FLV Splitter, Nero MP4 Splitter, ACM Wrapper, RealMedia Splitter, CyberLink MPEG-4 Splitter (PDVD7), Nero Splitter
672> Trying connection to AC3Filter :
672> Failed connecting pin to AC3Filter, removing it now.
672> Trying connection to DirectVobSub (auto-loading version) :
672> Failed connecting pin to DirectVobSub (auto-loading version), removing it now.
687> Trying connection to Default DirectSound Device :
687> OK, connected to (Audio Input pin (rendered))Default DirectSound Device
687> Completed path : D:\anime\[Bakakozou_-_Conclave]Witchblade_-_12[H264][BF82B8D3].mkv(Audio) -> ffdshow Audio Decoder(Out) -> Default DirectSound Device
687> MyRenderFile finished : OK