The first mod does exactly that, it can "compress" ships into bigger ships for ai, eeducing lag, it can destroy and limit habitats and such, limit gateways, limit species spam, etc
The 2nd one also does all of the things you mentioned, limits ai ability to do specific things and for ships it limits fleets to a specific number of x kind of ships and you can select (from presets) how many, like 60 corvettes a fleet for Ai for instance. You can also impose these restrictions on yourself if you want with that mod
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u/Eycariot Telepath 4d ago edited 4d ago
None. Most of the game's lags come from sources these mods can't fix. Check mods for reducing pops and ships.
While at it also check bugfixing mods