Live version data fetch is really slow vs dev version after Bulk PATCH

I ran Schedule API on List for 500k rows by chunks (10-50k per call)
(Bubble promised the feature can handle 100k operations tho)
Each call is made when the prev one is completed.

is it because it gets re-indexed internally on their side?

RGs is specifically slow now.

I have the same amount of rows in the dev version, it’s up to date with the live version

I have a feeling that I overused the feature and Bubble artificially slowed down my app for that, even tho App plan allows it
Like a cool down, dude …