Support require for design WDS Mesh Network

RouterOS Wireless Networking
1

We are using four RB433 with dual Omni Anteena, configured in Mesh WDS,
but we are not getting the good performance.

We decided to change all RB433 either with GrooveA 52HPN or Ubiquiti BulletM2 with 12dbi Omni Anteena,

Please tell which product is better and should give better performance

Regards,

2

PLEASE TELL WHICH ONE IS BETTER
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3

I go for the groove is more powerfull and more versatile

Ubiquiti bullet works fine but you can not work with virtual accesspoint with Original software
If you use DDWRT on bullet you can use virtual accesspoint