Performance issues while importing blocks

#### System information

Erigon version: `./erigon --version` - 3+

Reported with respect to hive consume-rlp and hive eest tests.

On average importing a single block takes around 2.4s - that's a long time and must be optimized, for this test and also in general.

See this
https://hive.ethpandaops.io/pectra/viewer.html?suiteid=1741966940-faff0f4585efeff1b17eba60ae4fb8dd.json&suitename=eest%2Fconsume-rlp&testid=5391&file=results%2Ferigon_default%2Fclient-1057f64b0f56a485c699f1e37a1eaded28daf1fe33b2ef9030a519284ddae585.log