fix: improve perf when cloning cluster entries

[Nerivec]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #1451 will improve performances by 64.79%

_{Comparing Nerivec:perf-createcluster (1b4fe34) with master (579d390)}

Summary

⚡ 9 improvements
✅ 3 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	Receive ZCL message	1.5 ms	1.4 ms	+11.5%
⚡	device.endpoint command	725.1 µs	506.4 µs	+43.18%
⚡	device.endpoint commandResponse	334.2 µs	265.7 µs	+25.76%
⚡	device.endpoint defaultRsp	634.7 µs	449.5 µs	+41.19%
⚡	device.endpoint read basic	784.9 µs	563.3 µs	+39.34%
⚡	device.endpoint write basic	847.7 µs	675.7 µs	+25.45%
⚡	group command	301.3 µs	182.8 µs	+64.79%
⚡	group read basic	400.6 µs	262.3 µs	+52.73%
⚡	group write basic	394.2 µs	258.3 µs	+52.57%

[Koenkk]

Nice to see the improvements!