Merge cells performence

Tags: #<Tag:0x00007f8b18829f10>

Attempt to merge a large amount of table row while using the handsontable.

Below is a table of size 1000x25, and actually this amount should be merged into a specific rule, but when applied, the operation speed of the table is very slow and the time it takes for the merge cell to be applied is very slow.

How do I resolve performance issues when using merge cells in a table with a large amount of row?

https://jsfiddle.net/e81L6qtz/4/

Hi @curlydoggi

There is no one strict rule regarding handling the performance issues. Here’s a list of the things that could help:

https://handsontable.com/docs/javascript-data-grid/performance/#define-the-number-of-pre-rendered-rows-and-columns

From my experience, the best solution in case like this is to set fixed width and height of the table. I tried it on your example and I already noticed some improvement.