This is relative, roaming itself is a customer decision. I usually leave it disabled because it can cause problems for legacy devices.
Do you have many APs in the environment? You can try to disable the lower bitrates, I for example usually use from 24 in high density environments.
You can still try to disable the load balancing client to validate if it has a positive effect.
One important thing is to always keep the device's wireless card divers up to date.
I would also recommend a site survey to analyze the wireless spectrum.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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