[Question] Performance single big list vs key per item

**Question**
I have a question about performance.
I have a list of up to 50000 items.
The list is read a lot but nearly never written.
My question is:
Is there a performance difference if I save the list as one big list with one key and load it into memory before accessing it vs storing each item with a key and use the „get“ function?
I need to access the items by key only.

TLDR: how much slower are read operations if the box has a lot of keys compared to accessing the list from memory? Is it negligible?
What impacts performance of box reads in general?

**Version**
- Platform: Android
- Flutter version: 1.22.3
- Hive version: 1.4.4