Cache for videofiles

Hey,

this is my advacedsettings

<advancedsettings>
  <network>
    <buffermode>1</buffermode>
    <smartcacheupperlimit>157286400</smartcacheupperlimit>
    <cachemembuffersize>157286400</cachemembuffersize>
    <readbufferfactor>10</readbufferfactor>
    <alwaysforcebuffer>1</alwaysforcebuffer>  
  </network>
</advancedsettings>

but it doesnt work. in Rasplex i see on "o" Debug infos while playback only "forward: 0B 99%"  The 99% seems to be any cache, but i dont see any cache fill/fillsize

Is there any Buffer in Rasplex? How can i activate it?

My Plex is remote and i need a high readbufferfactor and a cache of min 100mb.
Logfile in attach.

i read all the posts about cache in plex…

In Kodi and xbmc i always used this advancedsettings posted above ( without smartcacheupperlimit).

i found the answer. You need to turnoff ffmpeg codec in advanced video settings.

Hello! Where is the ffmpeg settings? Which file?