Slow to update, especially showing all rows

[Danny-Alexander]

It can take 3000ms+ on my computer to update when entering a search or changing something.

The Recipe column has significant impact (problem improves when it's not shown).

To Reproduce:

1. Show the page
2. Open debug
3. Select Show All entries
4. See Redraw took: 3330mS and similar messages in colsole
5. Type a common letter in search
6. See page hangs for some time while it's filtering and redrawing

Expected Result

• Page updates relatively quickly (1-2 sec when showoing ~600 rows)
• Text entry is responsive while it's 'calculating'

Ideas for improvement

1. Use a function to get the data adding additional properties containing dynamic display text
   • Localised numbers
   • Html for recipe etc
   • Calculated stat & columns
2. Use a Bootstrap or other text entry (with events to do async calculation in background)
3. Make the update run asynchronously (to not hold up the search entry or other UI)
4. Test if it's better with DataTables any extensions removed