HELP! 3000 star TNG start (Romulan Empire)

[u/Special_Diamond49]

Did a federation campaign on the same huge map about 6 months ago. Worked great.

Decided to start a new game as Romulan Empire but right from the start it's lagging. Freezing every couple minutes for around 6-10 seconds. Is it a bug? Any suggestions please? Also the federation has 100,000 stack right from the start. Surely that's not right?

Specs

i5-14600KF Nvidia 3090ti 32 gig ram Cpu