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If the initial opening of your price list is too slow, it is recommended create a default preference and have it applied to all price lists upon initial opening. This is done in the Configuration section. Generally you sort by the SKU or a combination of SKU and key2 for the matrix price lists. Test the sorting to ensure that it provides the expected performance before applying it as a default.
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In most cases, this won't be necessary. Additionally, global preferences only work when the logic is the same for the price lists. If there are various logics being used, the global preference will only work with those that share the same logic as the template.
References: