Groovy 4 and Parrot Parser performances

Hello,

I am using Groovy 3 in my project, but I had to turn off the new parser
because of its performance.
In my benchmark, the loading time of most of my scripts are multiplied by
12. I didn't succeed in reducing this time by using the system properties,
so I had to turn it off.

In Groovy 4, the old parser has been removed (?). Are the perf of the new
parser the same as of Groovy 3 ?
If not, is there a way to precompile these scripts ? (they are not real
groovy classes but custom Script classes).

Regards,
Jérémie