Increase Performance by Using VirtualizedLists

[peetzweg]

Fantastic library. Exactly what I was looking for. Love the feature and example of row and column labels.
However, I stumble across the same problem when I tried to implement it on my own using RN . It's quite slow when rendering a lot of entries. I'm talking about 300 items per row and 300 columns -> 90.000 items.
I stumbled across which uses which needs a renderItem method to render only Items which are visible. It seems like a good idea. Is this somehow incoperatable into this library in order to make it render faster for huge amounts of items?
Specifying exact dimensions of each items is not an issue.

Keep up the good work!