I have just installed 4834 version on my Pi3, performed all updates of the os and finally connected via another PC to domotcz dashboard, however I saw that very often Pi has kind of hiccup

I just wondered that meybe this has something to do with the fact that Pi3 is 64Bit and as I understand the version 4834 is 32Bit? Shall I rather first install Raspbian 64bit and then install on top of it domoticz?
I am just starting with domoticz so pls be easygoing with me

Thanks.