Construction syntax is slower than classic make construction

[Oldes]

I found, that I'm not able to use construction syntax in Rebol's boot code, so I had to revert recent mold bitset! change in commit: Oldes/Rebol3@7644bee

Meanwhile I noticed, that the construction syntax is actually slower to load than using make call.

>> profile [ [transcode to binary! {#[bitset! #{0000}]}]  [transcode to binary! {make bitset! #{0000}}] ]

Running 2 code blocks 10 times.
------------------------------------------------------------------------------------------------------------- 
Time               | Evals  | S.made | S.expa | Memory      | Code
1.0x (3μs)         | 3      | 4      | 1      | 200         | [transcode to binary! "make bitset! #{0000}"]
2.1x (6μs)         | 3      | 6      | 1      | 240         | [transcode to binary! "#[bitset! #{0000}]"]
-------------------------------------------------------------------------------------------------------------

I think that the result should be opposite - the construction syntax should be faster. And as a bonus, it should be possible to have it in the boot code!