marketplace API query limit

I was playing around querying content from the Minecraft marketplace and I noticed that I could query large amounts of data in a single request, for example the following query will return every single skin pack (roughly 6000) and takes about 15 - 30 seconds for the request to complete. Surely there should be some sort of hard limit in place for the amount of results that can be returned per request.

https://www.minecraft.net/bin/minecraft/productmanagement.productsinfobytype.json?locale=en-us&type=skinpack&limit=1000000