The Laird antenna that I have has TE Connectivity Laird PC8010N and made in China on it will it still have the same performance compared with the Larsen YA5800W made in USA
Different antennas.
The Laird is a 10 element
The Larsen is 7 element
The Laird has a bit more gain.
But, as we've discussed, performance isn't just about gain/beamwidth numbers. Picking the right antenna for the job that takes all the variables into consideration is important.
If you are concerned about the Laird being manufactured in China, well, that's probably not much of an issue. Not sure where the Larsen is made. China can produce perfectly good products as long as there is quality control. Never had any issues with Larsen and never had any issues with the few Laird products I've used.
Both Larsen and Laird are respected companies in the LMR industry, and I'd not really have concerns about purchasing either brand.