Admin product grid becomes unresponsive when loading "medium" dataset from devtools

[brent-hoover]

Issue Description

If you load the products and tags from the "medium" dataset (1000 products + options/variants) as an admin sometimes the grid will become unresponsive and lock up the browser. In Chrome it just locks up, in Firefox it shows

Steps to Reproduce

Please provide starting context, i.e. logged in as a user, configure a particular payment method.

1. Install the reaction-devtools plugin by cloning from here and clone into imports/plugins/custom
2. Reset the data and then under "Medium Dataset" click on "Load Products and Tags"
3. Observe that the browser crashes/freezes

Versions

Node: 8.9.4
NPM: 5.6.0
Meteor Node: 8.9.4
Meteor NPM: 5.6.0
Reaction CLI: 0.29.0
Reaction: 1.9.0
Reaction branch: master
Docker: 17.12.0-ce