Rpadge

You didnt mention which graphics card, but if I do a search it appears you may have a RTX4060 gpu. Thats not a bad card, so I wonder if you have something else going on. I am assuming these problems happen with all your files, (not just one) so you may try updating the graphics driver. GPU will be one of the most important features to look for. Personally, if I were buying a new laptop, I would look for a 4080, or a 5080 gpu, and maybe drop down to a 5070. I would stay away form any xx60 card (4060, 5060). I have a 4070 and it still performs pretty well. Theres a lot of good laptops with those specs for less than 2K.

What do you have now? When are you seeing lag currently? Do you use PBR (3d renderings etc)? What’s your budget?

In the Window Spec DBX theres a setting for Opening Indicators (between shutters and rough opening), you can also turn them off in ALDO

the 2,413 of the plank flooring is not sq feet (I think), not sure if thats what your referring to or not, but you may want to check the material definition. I believe that is a linear foot quantity

You can enter the dimensions in inches ( 122 instead of 10’-2”)

Specs appear to be pretty good, but 5 years is a lot to ask for a computer to stay "current", especially a laptop.

I Changed the roof pitch of the shed dormer to 1.75/12 I believe in order to allow it to join properly.

Take a look at how I made some adjustments, Garage-21x31-forum (1).plan

I probably wouldn't use the dormer tool in that situation. Just draw the upper section like you did the lower and add a shed roof over it.

Is it possible that the mounding is coming in below the ground (obstructing it from view)?

Nice job!

I changed the floor structure in the room dbx to be a 4" conc slab.

I dont think you want to do the slab in the foundation menu. I created this with a slab for my floor system (first floor), then built a foundation underneath.

Probably should post the plan.

I have a similar Lenovo system and it performs well.