diff --git a/src/eval/mod.rs b/src/eval/mod.rs
index 443000e9..814baaf2 100644
--- a/src/eval/mod.rs
+++ b/src/eval/mod.rs
@@ -11,8 +11,10 @@ mod target;
 pub use cache::{Caches, FnResolutionCache, FnResolutionCacheEntry};
 #[cfg(any(not(feature = "no_index"), not(feature = "no_object")))]
 pub use chaining::ChainType;
+#[cfg(not(feature = "unchecked"))]
 #[cfg(not(feature = "no_index"))]
 pub use data_check::calc_array_sizes;
+#[cfg(not(feature = "unchecked"))]
 #[cfg(not(feature = "no_object"))]
 pub use data_check::calc_map_sizes;
 #[cfg(feature = "debugging")]
diff --git a/src/func/call.rs b/src/func/call.rs
index 687ed3fc..d9928fdf 100644
--- a/src/func/call.rs
+++ b/src/func/call.rs
@@ -1576,6 +1576,11 @@ impl Engine {
                 .0
                 .flatten();
 
+            match value.0 {
+                Union::Bool(b, ..) => return Ok((!b).into()),
+                _ => (),
+            }
+
             return value.as_bool().map(|r| (!r).into()).or_else(|_| {
                 let operand = &mut [&mut value];
                 self.exec_fn_call(
@@ -1597,6 +1602,8 @@ impl Engine {
                 .0
                 .flatten();
 
+            // For extremely simple primary data operations, do it directly
+            // to avoid the overhead of calling a function.
             match (&lhs.0, &rhs.0) {
                 (Union::Unit(..), Union::Unit(..)) => match op_token.unwrap() {
                     Token::EqualsTo => return Ok(Dynamic::TRUE),
@@ -1623,6 +1630,7 @@ impl Engine {
                     #[allow(clippy::wildcard_imports)]
                     use crate::packages::arithmetic::arith_basic::INT::functions::*;
 
+                    #[cfg(not(feature = "unchecked"))]
                     match op_token.unwrap() {
                         Token::EqualsTo => return Ok((*n1 == *n2).into()),
                         Token::NotEqualsTo => return Ok((*n1 != *n2).into()),
@@ -1630,29 +1638,26 @@ impl Engine {
                         Token::GreaterThanEqualsTo => return Ok((*n1 >= *n2).into()),
                         Token::LessThan => return Ok((*n1 < *n2).into()),
                         Token::LessThanEqualsTo => return Ok((*n1 <= *n2).into()),
-
-                        #[cfg(not(feature = "unchecked"))]
                         Token::Plus => return add(*n1, *n2).map(Into::into),
-                        #[cfg(not(feature = "unchecked"))]
                         Token::Minus => return subtract(*n1, *n2).map(Into::into),
-                        #[cfg(not(feature = "unchecked"))]
                         Token::Multiply => return multiply(*n1, *n2).map(Into::into),
-                        #[cfg(not(feature = "unchecked"))]
                         Token::Divide => return divide(*n1, *n2).map(Into::into),
-                        #[cfg(not(feature = "unchecked"))]
                         Token::Modulo => return modulo(*n1, *n2).map(Into::into),
-
-                        #[cfg(feature = "unchecked")]
+                        _ => (),
+                    }
+                    #[cfg(feature = "unchecked")]
+                    match op_token.unwrap() {
+                        Token::EqualsTo => return Ok((*n1 == *n2).into()),
+                        Token::NotEqualsTo => return Ok((*n1 != *n2).into()),
+                        Token::GreaterThan => return Ok((*n1 > *n2).into()),
+                        Token::GreaterThanEqualsTo => return Ok((*n1 >= *n2).into()),
+                        Token::LessThan => return Ok((*n1 < *n2).into()),
+                        Token::LessThanEqualsTo => return Ok((*n1 <= *n2).into()),
                         Token::Plus => return Ok((*n1 + *n2).into()),
-                        #[cfg(feature = "unchecked")]
                         Token::Minus => return Ok((*n1 - *n2).into()),
-                        #[cfg(feature = "unchecked")]
                         Token::Multiply => return Ok((*n1 * *n2).into()),
-                        #[cfg(feature = "unchecked")]
                         Token::Divide => return Ok((*n1 / *n2).into()),
-                        #[cfg(feature = "unchecked")]
                         Token::Modulo => return Ok((*n1 % *n2).into()),
-
                         _ => (),
                     }
                 }
diff --git a/src/packages/array_basic.rs b/src/packages/array_basic.rs
index c8cb1a86..6e2c2089 100644
--- a/src/packages/array_basic.rs
+++ b/src/packages/array_basic.rs
@@ -2,7 +2,7 @@
 
 use crate::api::deprecated::deprecated_array_functions;
 use crate::engine::OP_EQUALS;
-use crate::eval::{calc_index, calc_offset_len, calc_array_sizes};
+use crate::eval::{calc_index, calc_offset_len};
 use crate::module::ModuleFlags;
 use crate::plugin::*;
 
@@ -238,7 +238,7 @@ pub mod array_functions {
         #[cfg(not(feature = "unchecked"))]
         if _ctx.engine().max_array_size() > 0 {
             let pad = len - array.len();
-            let (a, m, s) = calc_array_sizes(array);
+            let (a, m, s) = crate::eval::calc_array_sizes(array);
             let (ax, mx, sx) = item.calc_data_sizes(true);
 
             _ctx.engine()