Re: Some advice please
@SianAF148 On your current laptop, one thing that may help with loading times is disabling the pop-up that lists your mods and custom content at the Main Menu. I've read that it makes a significant difference for at least some players. It's also worth checking your free storage to make sure you have enough: 20 GB is the minimum for Windows feature updates, but 12-15 should at least ensure this isn't contributing to the problem. And don't run any other programs while you play, since they'll take resources your laptop really needs for Sims 4.
It's also possible that some other system issue is contributing to the issue, so feel free to post a dxdiag if you'd like me to take a look.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/
But the truth is, this laptop is never going to run Sims 4 well. I'd expect low-medium settings would be the best it could do, even with nothing else running in the background, and your custom content might make even that a stretch, depending on the poly count of the cc items. Some of this depends on playstyle too, for example having more sims in the household or more items on the lot could make the game grind to a halt.
As for a new laptop, all you need these days in order to run Sims 4 on ultra settings, all packs included, is a new-ish dedicated graphics card that isn't part of the Nvidia MX series. I'd avoid the Intel Arc cards for now because they've had issues with Sims 4 in the recent past and I wouldn't trust that those issues are resolved. But an Nvidia RTX 1600-series or higher, or an AMD RX 6000-series, would be sufficient. I'd go with an RTX 3050 over a GTX 1650 though: prices are almost the same, and the 3050 is maybe 30% faster in gaming.
The processors that accompany these are all more than able to keep up with the graphics cards because GPUs are more expensive, relative to performance. So no laptop manufacturer wants to sell a unit with a card that's held back by an underpowered CPU. 8 GB RAM is enough for Sims 4, although 16 GB is nice to have for other reasons. On the other hand, almost any gaming laptop will let you upgrade the memory, and it's usually very easy and currently quite cheap. (The exceptions are ultralight specialty models, but these almost always come with at least 16 GB anyway.) So don't cross off an 8 GB model if you like everything else about it. For storage, 256 GB is enough, but 512 GB is convenient to have, and storage upgrades can be simple or complicated, depending on the individual laptop.
Gaming laptops usually start around $700 U.S., with prices being slightly to somewhat higher elsewhere. Upgrading to the next tier of graphics card can add another $200-300 to the price, as can getting a lightweight model. I don't think it's worth going past an RTX 3060 or RX 6700M for Sims 4: the game can't really take advantage of high-end graphics cards. If you're looking for particular features, you might need to pay a little extra as well, but certainly not in the multiple thousands.
If you'd like some suggestions, just let me know your budget and country. Or if you'd prefer to do your own shopping, feel free to link the options you're considering for a second opinion.