# Performance of NativeScripts **URL:** \ **Category:** Elasticsearch\ **Created:** [January 25, 2016, 11:31am UTC](https://discuss.elastic.co/t/performance-of-nativescripts/40017 "2016-01-25T11:31:03Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![dmitriy\_olshanskiy](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@dmitriy\_olshanskiy](https://discuss.elastic.co/u/dmitriy_olshanskiy)\ **Post date:** [February 10, 2016, 12:51pm UTC](https://discuss.elastic.co/t/performance-of-nativescripts/40017/3 "2016-02-10T12:51:30Z")
Interestingly I observe that performance degradation is noticeable only with scripted sorting, but not with function\_score. Any ideas on what may be the cause? Posted here: > [@Function\_score script\_score query vs sort script performance](https://discuss.elastic.co/t/function-score-script-score-query-vs-script-sorting-performance/41377): > > I've found an order of magnitude difference in performance of queries that use function\_score with script-based score vs queries that use sort with the same script. What could cause this difference ? Does it make sense to stick to creative use of custom\_score for sorting? (I'm using ES 1.7.4) Example queries: { "explain": false, "fields": ["sku"], "from": 0, "query": { "filtered": { "filter": { "bool": { "must": { "term": { … --- _[View the full topic](https://discuss.elastic.co/t/performance-of-nativescripts/40017)._