Fresh install Jessie and Xenial. Why libMali Xenial slower than Jessie?

[tommy]

I test in Orange pi lite libMali.so, both X11 and framebuffer. Xenial' X11 mode tests by glxgears fps is around 250-270 but Jessie is around 400-420,  billiard game that use Opengl is noticable different. For framebuffer, I use retroarch that also noticable slow in Xenial. Anyone know why Xenial libMali is slower than Jessie?

[tommy]

 

Glxgears runs from Jessie

 

Glxgears runs from Xenial