html - Rendering many partials in rails (500+) is slow -

i made partial of song model artist, title, duration, release etc.

i want show artists songs on 1 page, have ton. query takes 0.08 seconds, see this:

rendered artist/_song_listing.html.haml (18.2ms) rendered artist/_song_listing.html.haml (8.5ms) rendered artist/_song_listing.html.haml (7.5ms) rendered artist/_song_listing.html.haml (9.6ms) rendered artist/_song_listing.html.haml (18.6ms) rendered artist/_song_listing.html.haml (12.6ms) rendered artist/_song_listing.html.haml (7.8ms) rendered artist/_song_listing.html.haml (19.5ms) 

(etc etc)

ultimately takes 14 seconds, way long.

is wrong use partials in way? there way make faster?

edit:

artistcontroller:

  def show      @artist = artist.find(params[:id])     @songs = @artist.songs.order('published_at desc').includes(:members) 

show.html.haml:

  .panel.panel-default     - @artist.songs.each |song|       =render 'song_listing', song: song 

exerpt _song_listing (~500 times):

.row   .col-xs-12     .summary       -if song.summary.present?         ="#{song.summary.sanitize.strip.gsub("\u00a0"," ")}"       -else         %i           no summary  .row   .col-xs-10     %ul.list-inline       - song.members.each |member|         %li           %span             %img{src:"#{member.image_url}", width: '20px', height: '20px', class: 'img-circle'} 

is load coming sql queries? try pre-loading in controller.

@songs = song.all.includes(:artist,:title) 

then

@songs.each |song|   # render logic here each song end 

in includes put related associations, not loaded automatically.

this should make each partial rendering faster, if sql queries problem.

further instructions include first up:

@artist = artist.find(params[:id]).includes(:songs => [:members]) @songs = @artist.songs.order('published_at desc') 

i believe trick you. had earlier still ok. not sure if brackets around ":members" required, saying, include artist's songs, , each song include it's members.