Software Installation

I have a 2016 Black Widow edition keyboard. Just recently, I also purchased a Balsilisk X Hyperspeed mouse. Previous Razer Synapse software (2.2) did not support adding a mouse. Attempted installation of Synapse 3 but it failed. Hence, removed 2.2 software and then attempted to re-install; it failed again.

At present I have no Synapse software installed. Reason for the attempt to install Synapse 3 was a/c the new mouse' pointer being difficult to control--i.e., moves very fast and there are no apparent adjustments to slow it down. I am not a gamer, rather just like the Balsilisk feel, touch etc.

Would like to have both the keyboard and mouse component work with a unified software. If there's a better fit than Synapse 3, would appreciate the recommendation This is the error message received on the recent Synapse 3 failure:

System.IO.FileNotFoundException: Could not load file or assembly 'RSy3_AudioAppStreamsWrapper.dll' or one of its dependencies. The specified module could not be found.
File name: 'RSy3_AudioAppStreamsWrapper.dll'
at Synapse3.UserInteractive.ApplicationStreamsEventHandler..ctor(IAccountsClient accountEvent, IApplicationStreamsEvent appStreamsEvent)
at Synapse3.UserInteractive.HiddenForm.<HiddenForm_Load>d__20.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.<ThrowAsync>b__6_0(Object state)

Attempts to find an e-mail address for direct, Razer support almost impossible; they don't make it easy.
HS