Default rate was a bit slow even for being slow. Fixed to a more sane starting point.

config/settings/settings.toml

@@ -23,8 +23,8 @@ hardware_device = ""
 hardware_baud_rate = 0
 enabled = true
 # Shared -100 to 100 scale; hardware drivers map it to native ranges.
-# -20 corresponds to 0.4 on Python Fenrir's 0.0 to 1.0 scale.
-rate = -20
+# 0 is the synthesizer's normal rate.
+rate = 0
 # Empty choices use the server default. Voice names are module-specific.
 module = ""
 language = ""