The Debugger App preforms nominally in most basic debugging situations. Excessive debug logging, specifically text, can make the App feel sluggish. It is recommended to delete unused filters and disable filters to improve App performance.
For official builds all visual debug macros are compiled out and the VizDebugger is reduced to a selective few method stubs. This means there are no security concerns for this system with exception of mutable side effects in the creation of input variables to the logging macros. These concerns for mutable side effects already exist for any other code; so no special attention is warranted for these macros.
For non-official (debug) builds the dev-tools remote debugging port command line argument must be provided for the viz debugger to collect and stream data. Thus the security of this new system is identical to that of the remote dev tools for the case of debugging builds.