The new update has fixed the issues of lag. Thankfully they actually listened.

I used this to fix the issue and it worked for me.
(Use esto y se fue el error de mi juego. Aver si le ayuda a usted). Aqui esta;
https://www.gta5-mods.com/tools/heap-limit-adjuster-600-mb-of-heap

@eshenk I do have the same settings that are in the control panel the same as in game and of course I have vsync off. I hate vsync. I used to run the game with the geforce optimization tool but I got more FPS with advance graphics settings all off. One thing I should also mention is that this also applies to the buildings that are in construction as well. Where you start the mission I fought the law you start it in a building that is being constructed. That area alone of even looking at it puts my fps from 45-60 to 35 FPS. This applies to all buildings in Los Santos that are under construction. All of Eclipse Boulevard has low FPS as well. The lowest it went was 26 FPS. Everywhere else it runs fine except interiors, Construction buildings and that entire street.

@eshenk Even when I'm outside the interior or near it the FPS is dramatically bad. It goes from near 60 to 28 when I'm near it. Try doing the Bureau Raid when its going 23 FPS when the building is on fire and it dips to 18 FPS when having a shootout with the FIB agents inside. I still haven't updated the game until scripthook is updated and so is trainer so I don't know if this new update fixes the issue but hopefully it does.

@krissboo Doesn't work. I'm guessing I have to wait till tomorrow to see if Rockstar fix that Issue since I did send them a ticket for my problem.

@ReNNie Yes I put them on my desktop until I can find a fix for this. I'm thinking that there might be something wrong with Rockstar's updates because as I mentioned only the doomsday heist update ended up fixing this. Rockstar might've optimized or fixed the issue but came back in this update. Hopefully it will be fixed in the nightclub update on Tuesday. Any other possible fixes that I could try to fix this issue? I moved my savegames to the desktop but the issue is still there.

Removing the settings.xml did not help at all the issue is still there. Loaded up as Michael 23 FPS at his house.

Could you tell me the path to reach this file? Where is it located? What does this delete exactly?

I've tried to reinstall the game to see if that fixes it but no luck. As soon as I entered Simeon's Dealership and Franklin's Aunt Denise house the FPS went to 23 again. 25-32 FPS when I'm outside the house but near it. I don't understand why this happens. My PC can run GTA V. Why would I have this issue.

Did not work I loaded up in Michael's house with 23 FPS still inside his house.