Saving big matrix fields problems I'm implementing a site with just one very big matrix field called 'blocks', and all my frontend is designed with BEM CSS with a lot of components.

But i'm facing problems with this big field.

1) If two block types have a field called 'cssClasses' of type 'Multi-select', it's not validating correctly and is saving just one of this fields. I've found a workaround, changing the name of second field, but frequently i lost a lot of field values with this problem. (i really don't know exactly why this problem is happening sometimes)

2) If i have too many fields on my block items, there are some implicit field limit that i don't know where is, that all block item fields after this limit are deleted when save... its a very big problem, because all my entries loose all the data for these fields. It's really a big problem for me... (maybe can be max_input_vars value and/or post_max_size)

3) It's very slow to page render this big field when testing on Amazon(rds large + 1000 IOPS SSD) or Heroku (clearbit database high io), compared to my localhost.

PS: 
I'm using LinkIt plugin and SuperTable plugin for some fields...
In a previous project when I was in dev mode, the website was very slow. But when I shut this down it was fast again. Could this be a solution?