Almost my first 5000 dev by absolutism Russia run if I wrap up this succession war. The trick to getting this big is getting a golden age ASAP and using the "transfer subject" power on Sweden and Lithuania (you need a couple regular wars first) and then making 50+ farm estates in your first strategic bankruptcy debt cycle. After that you can use at minimum level 3 advisors from then on.
Also, using the winter palace to diplo vassalize HRE nations is probably better than those central Asian vassals. I could go for military hegemony now but the Ottomans still count as a "rival" so I don't need to for the power projection. I just forgot to insult them in the screenshot.
What idea groups did you go for? And what difficulty?
The transfer subject deal is pretty sweet. Naples or Aragon are also good targets. Sometimes even bohemia/hungary/Burgundy.
Otherwise, not bad, not bad. HOWEVER
Played Vijayanagara on VH. Went Admin->Diplomatic->Influence->Humanist (didn't finish). One thing I've found on the current patch is that favors are bonkers overpowered and if you have diplomatic+influence your diplorep basically allows you to ally anyone and call them into endless wars as a punching bag so long as you can pay off their debts, and your diprep also allows you to ally basically anyone who hasn't rivaled you including far away heathens. So fights wars where you just siege and the AI does the fighting and losing land (to pay off allies of the target). Vassals of course massively lower your AE (vassalizing a broken timurids and feeding them their land back is basically a free 500 dev) , and allying major powers lowers your AE against them, which is essential for anyone fighting muslims due to the worldwide muslim coalition you face otherwise. Still didn't manage to finish off jaunpur, a single war causes like 35 AE with Ottomans and I didn't want to fight them since they went quantity and field 350k troops, though I probably could have beaten them by calling in Mamluks.
Indians also get an overpowered great project in Doaba which can be upgraded for 3500 gold to lower your autonomy floor by 10%. That means all the territories that normally only have 90% autonomy produce twice as much at 80% autonomy. It also gives -monthly autonomy so you can safely spam sell crownland for dosh down to ~10% and raise autonomy to prevent rebels without any real long term penalties.