multiple cards or token at the same time slow down the game

when multiple tokens (especially different ones) enter the battlefield at the same time,
and especially if they would be affected by static abilities,
it slows down the engine way too much.

For example: Investigate (1 Clue) with Academy Manufactor (1 Clue, 1 Treasure, 1 Food) and Chatterfang, Squirrel General (1 Clue, 1 Treasure, 1 Food, 3 Squirrel) on the field.
it puts the token one-by-one on the battlefield.

we need to find a way to make this faster, or if we can stop the GUI from rendering until all the tokens are on the battlefield,
so it just updates them all together.