Reword

README.md

@@ -6,6 +6,6 @@ Lightweight exceptions.
 
 Lithium provides a custom exception mechanism as an alternative to Rust panics. Compared to Rust panics, this mechanism is allocation-free, avoids indirections and RTTI, and hence faster, if less applicable.
 
-Under the default configuration, Lithium is more than 2x faster than Rust panics on common `Result`-like usecases. See the [benchmark](benches/bench.rs).
+On nightly, Lithium is more than 2x faster than Rust panics on common `Result`-like usecases. See the [benchmark](benches/bench.rs).
 
 See [documentation](https://docs.rs/lithium) for usage and installation instructions.

src/lib.rs

@@ -4,9 +4,8 @@
 //! panics, this mechanism is allocation-free, avoids indirections and RTTI, and hence faster, if
 //! less applicable.
 //!
-//! Under the default configuration, Lithium is more than 2x faster than Rust panics on common
-//! `Result`-like usecases. See the
-//! [benchmark](https://github.com/iex-rs/lithium/blob/master/benches/bench.rs).
+//! On nightly, Lithium is more than 2x faster than Rust panics on common `Result`-like usecases.
+//! See the [benchmark](https://github.com/iex-rs/lithium/blob/master/benches/bench.rs).
 //!
 //!
 //! # Usage