Help with citra emulation configuration

What are these settings and do I turn them on or off , enable or disable them.
I know that the settings may vary by game.
but I mean by most games.
leaner filtering , texture filtering (my options are none , bicubic , scaleforce XBRZ freescale , anime4k ultra fast) (I know I cant use 4K options) , stereo scopic 3D mode (my options are off , side by side , anaglyph , interlaced , reverse interlaced) , hardware render , hardware shader , accurate multiplication , shader(then theres a space then 3 capital letters touching each other.I cant make out what they are) ,disk shader chache , vsync.