Override app/helpers/blacklight_advanced_search/advanced_helper_behavior.rb to initialize and use one query parser to check if a facet value is checked, refer to method def facet_value_checked?
Change advanced search facet views to use facet label directly instead of using #facet_display_value. The use of facet_display_value leads to a massive number of allocations when the field rendered has a lot of values.
Remove advanced search page caching related logic from indexing
app/helpers/blacklight_advanced_search/advanced_helper_behavior.rbto initialize and use one query parser to check if a facet value is checked, refer to methoddef facet_value_checked?#facet_display_value. The use offacet_display_valueleads to a massive number of allocations when the field rendered has a lot of values.