Slow import in Lightroom Classic

Hello all,

I've been having these nervewrecking issues on import photos to LR Classic.

I have an IMac 5K 27'' 2020, connected to a Synology DS 1522 + (5 disks 10TB each Raid 5) and an external WD 18TB

I import my Photos, i am a Sports Photojournalist, at home using LR, and last months have been crazy, with uncountless hours lost on this imports.

It gets so slow, that sometimes can take almost a day on this. Right now i am importing last night event, i mean 8k photos that would take like 1h to import and i am now with 8hours and still not finished 6k of them.

I started to think it was the Synology and contacted the support, but this happens in the external Drive, via usb.

I created a new Catalog, reseted preferences and still is way too slow.

My IMAC:

Intel Core i9 3,6Ghz 10 Core

AMD Radeon Pro 5500 XT 8Gb

128Gb Ram 2667Mhz DDR4

macOS Sequoia 15.1.1

Can anyone help?

Many thanks in advance

JR