# Performance problem when using raycaster

**URL:** <https://discourse.threejs.org/t/performance-problem-when-using-raycaster/5314>\
**Category:** Questions\
**Tags:** raycaster, performance\
**Created:** [December 11, 2018, 4:30pm UTC](https://discourse.threejs.org/t/performance-problem-when-using-raycaster/5314 "2018-12-11T16:30:09Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![hofk](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/hofk/32/44944_2.png) [@hofk](https://discourse.threejs.org/u/hofk)\
**Post date:** [December 12, 2018, 2:02pm UTC](https://discourse.threejs.org/t/performance-problem-when-using-raycaster/5314/4 "2018-12-12T14:02:27Z")

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I put the example on the list for the sample collection.  
[Collection of examples from discourse.threejs.org](https://discourse.threejs.org/t/collection-of-examples-from-discourse-threejs-org/4315)

Unfortunately it only works with Opera, Chrom but not with Firefox.🙁

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