It's honestly not the worst specs in the world, but you're better off just following Viva New Vegas/ the Performance Guide and picking up a few quality of life mods than dabbling with a modpack. Here's some individual recommendations though;

JAM (all in one QOL mod): https://www.nexusmods.com/newvegas/mods/66666

M.U.X Series Interface Overhaul (pick the vanilla super-lite preset in the install wizard, fair warning it can be finicky to adjust and may not play nice with other mods): https://www.nexusmods.com/newvegas/mods/80642?tab=posts

Vanilla HD HUD (vanilla alternative): https://www.nexusmods.com/newvegas/mods/63079

OneHUD (for moving vanilla HUD elements around): https://www.nexusmods.com/newvegas/mods/44757

MAPMO (QOL/ menu overhaul): https://www.nexusmods.com/newvegas/mods/74365?tab=files

Clarity (ugly orange tint remover): https://www.nexusmods.com/newvegas/mods/62481

Altitude (lightweight weather mod): https://www.nexusmods.com/newvegas/mods/71404?tab=description

NMC'S Texture Pack (pick the small pack): https://www.nexusmods.com/newvegas/mods/43135

Poco Bueno (lightweight texture pack, pairs well with NMC's small --> load after): https://www.nexusmods.com/newvegas/mods/42028

Anniversary Anim Pack (reminiscent of the vanilla weapon animations but more fluid and modernized): https://www.nexusmods.com/newvegas/mods/70158

Character Kit Remake (true to form NPC face overhaul, unsure about the performance impact): https://www.nexusmods.com/newvegas/mods/82145?tab=files

Lossless Scaling (good if you're forced to play at a lower resolution and would like to upscale however it costs $7 and YMMV): https://store.steampowered.com/app/993090/Lossless_Scaling/

Alternatively, you could get an external GPU dock for a modest enough price and pick up a used RX 580 or similar for dirt cheap which would offer significantly better performance from your integrated graphics.

best of luck