Benefit of increase number of data node in searching performance?

Elastic Stack Elasticsearch
1

Hi all
Currently in my cluster, i have 3 data node in total, the query performance is fine but i really wanted it to be better, so other than doing all the thing that some blog say i should on the internet, i was just wondering if i increase the number of data node, will the searching performance be better since it has more cpu and ram.

Thank you for your time

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How large is your data set? Are you looking to improve latency and/or query throughput? What is the specification of the hardware currently used?

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I am looking to increase the search latency
my hardware are well 64GB ram and 32 cpu core with ssd for disk

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How large are your indices? How many shards do you have?

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well most of them are about 300GB and some are more, i config them to have 3 or 6 shards for each indices and all of them has 1 replica shards

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So are there any answer for my questions? please help

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