Teensy 3.2 Artnet with 8 Strings of a 100, works great except 8th string is slow

[Killersworld]

This is my first try at a big project and a newbie to the forum. I recently bought a couple teensy 3.2 and a 3.5 to run a mega tree project of 8 strands of a 100 WS2811. Everything tested great in xlights until i was at the 8th output when everything got really slow. I have an Octo also and tested different setting and the output just seems to be lagging a bit when writing to the LEDS. I have the 3.5 and it does the same thing. Basic Test example works OK except white isn't really white.Can somebody point out what I am missing,Thanks

 

[sangimanu]

Hi guys this is sangimanu.Now only ill joining here so please help me to clear my doubts and problems.I hope you are all support me well. Thank you so much.