@Heartless
While the libreelec ppsspp version says it is updated to 1.8.0, it seems much the same as the 1.5.4 version we have. With all the same rendering issues and performance, I think most of the updates do not apply to the opengl renderer that we have.
There was the addition of only one new main setting, and the removal of two settings. Skip Frames by percentage of FPS or Numer of Frames. I can't say if it works or not, it seems to just skip frames the same way. The removal of the two hack settings, timer and stencil test.
It is probably up to the PPSSPP developers, who know enough about the emulator to update it for us. Though this may never happen.