Muxing "m2ts" file, VERY SLOw !!!

[Selur]

Before the debug output probably ended, since you changed the location of the debug output,..
Looking at the debug output Hybrid uses:

MetaFile: E:\Temp\tsMuxerMeta_2023-07-09@18_58_27_3110__04.meta

MUXOPT --no-pcr-on-video-pid --new-audio-pes --hdmv-descriptors --vbr --vbv-len=500
V_MPEG4/ISO/AVC, "E:\Temp\test_1_2023-07-09@18_58_27_3110_03.264", fps=23.976, insertSEI, contSPS, ar=1:1 (Square)
A_AC3, "E:\Temp\iId_17_aid_0_lang_en_DELAY_83ms_2023-07-09@18_58_27_3110_01.thd", timeshift=83ms, lang=eng

with tsMuxeR:

"C:\Program Files\Hybrid\64bit\tsMuxeR.exe" "E:\Temp\tsMuxerMeta_2023-07-09@18_58_27_3110__04.meta" "E:\Temp\test.m2ts"

tsMuxeR starts and reports:

tsMuxeR version git-6b4d3fd. github.com/justdan96/tsMuxer
Decoding H264 stream (track 1): Profile: High@4.1  Resolution: 1920:1080p  Frame rate: 23.976
H264 bitstream changed: insert nal unit delimiters

Decoding E-AC3 (DD+) stream (track 2): Bitrate: 91Kbps (core 0Kbps) Sample Rate: 22KHz Channels: 5
E-AC3 (DD+) stream (track 2): bad frame detected at position00:00:00,069. Resync stream.

Decoding AC3 stream (track 2): Bitrate: 251Kbps (core 160Kbps) Sample Rate: 44KHz Channels: 6
E-AC3 (DD+) stream (track 2): bad frame detected at position00:00:00,133. Resync stream.
....
Decoding E-AC3 (DD+) stream (track 2): Bitrate: 684Kbps (core 112Kbps) Sample Rate: 32KHz Channels: 4
E-AC3 (DD+) stream (track 2): bad frame detected at position00:00:04,847. Resync stream.

Decoding AC3 stream (track 2): Bitrate: 1020Kbps (core 448Kbps) Sample Rate: 48KHz Channels: 6
AC3 stream (track 2): bad frame detected at position00:00:04,847. Resync stream.
...

and there are tons of these messages. Seems like there is an issue with the audio steam or how tsMuxeR handles it, which caues the muxing to takes so long.
You can try whether using a newer tsMuxeR version (https://github.com/justdan96/tsMuxer/releases) helps.

Cu Selur