ExtJS Grid slow with 3000+ records

Posted by Oliver Watkins on Stack Overflow See other posts from Stack Overflow or by Oliver Watkins
Published on 2014-06-05T15:21:17Z Indexed on 2014/06/05 15:24 UTC
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JavaScript

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extjs

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extjs4

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extjs5

I am using ExtJS Grid and its getting pretty slow with 3000+ records.

Sorting takes about 4 seconds. Compared to other more Javascript tables, this is pretty slow.

I am thinking maybe to use pagination in my table. However after reading the documentation, I am still a bit unsure about how pagination works in extjs. Does this pull data from the server each time u turn a page? I would prefer that wasn't the case. I would prefer the 3000 records are saved in the browser and then what is rendered is just a portion of those rows.

Also I am using Extjs version 4.2.1. If I upgrade to version 5. will I get some performance improvements?

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