GSP generation, Groovy 4 slower than Groovy 3?

Hi folks,

we have started porting Dueuno to Grails 7/Groovy 4. We have a
stress-test that generates a big table (200 columns x 100 rows) with
GSP (we are doing server-side rendering).

I'm reporting the tests below. Is there something we can do to get
back the performances we had with Grails 6/Groovy 3?

Even with INDY turned off we are almost 1sec slower on the tests, more
than 2x slower on normal pages:

Grails 7/Groovy 4
Page 1 - TRANSITION rendered in 185ms
Page 2 - TRANSITION rendered in 453ms

Grails 6/Groovy 3
Page 1 - TRANSITION rendered in 83ms
Page 2 - TRANSITION rendered in 280ms

TESTS
======
Same URL (Table stress-test), 4 requests after 3 warmup requests (not
shown, cold-running the app from intelliJ), measuring the Grails
render() execution time.

From slower to faster:

Grails 7 - Indy ON
TRANSITION rendered in 4807ms
TRANSITION rendered in 4779ms
TRANSITION rendered in 4660ms
TRANSITION rendered in 4699ms

Grails 7 - Indy OFF
tasks.withType(GroovyCompile) {
    groovyOptions.optimizationOptions.indy = false
}
TRANSITION rendered in 3660ms
TRANSITION rendered in 3442ms
TRANSITION rendered in 3510ms
TRANSITION rendered in 3700ms

Grails 6
TRANSITION rendered in 2853ms
TRANSITION rendered in 2864ms
TRANSITION rendered in 2734ms
TRANSITION rendered in 2800ms

Gianluca Sartori
--
https://dueuno.com