Test PR: Revert recent refactoring

[mweberxyz]

This PR simply reverts the recent refactoring PR - do not merge.

Benchmark tag added to show the performance regression that would be caused by merging this revert.

[github-actions]

Benchmark		Node 18 PR	Node 18 Base		Node 20 PR	Node 20 Base		Node 21 PR	Node 21 Base
express.js		7919	7998		8610	8729		7929	7948
fastify.js		26344	39921		31299	42120		30932	41153
fastify-art.js		8623	9034		10430	10759		8031	8626
fastify-dot.js		32734	44406		35070	46300		34228	46232
fastify-eta.js		23586	26091		26929	29249		32638	35864
fastify-pug.js		21906	37437		32119	39264		24689	37653
fastify-twig.js		21288	31950		28408	35774		26802	35819
fastify-liquid.js		5820	6456		6746	7458		6525	7438
fastify-mustache.js		23589	30073		30428	33390		29580	33534
fastify-nunjucks.js		31462	39560		34564	41076		33582	41006
fastify-ejs-async.js		31400	38856		35195	41976		34145	41582
fastify-ejs-minify.js		8988	11522		11094	14426		10649	13256
fastify-handlebars.js		20079	22634		25605	29697		24911	25218
fastify-ejs-local-layout.js		18016	24876		21690	30312		21949	29371
fastify-ejs-global-layout.js		25346	35422		28532	39336		28063	38225