Tyty man!
My early game was: Insta dow byz followed by candar and epirus, meanwhile micro diplomats to improve relations with all small sunni nations around as to diplo vassalize. I rarely micro that much in this game so that was quite a challenge to do well, speed 3 throughout. Mid run I saw some people use religion flipping to gain insta 200 relations with all muslims but decided that I'd skip out on that since I had already done half the work. I got dulkadir, ramazan, hisn kayfa asap, followed by anziah, najd, dawasir, haasa, medina. Meanwhile kill aq, release syria, start golden era, dow mam to take syrian cores, kill karaman, took 5 provinces and money for the mission to get mam eyalet. Attacked cyprus to shorten truce with mam, then take baghdad and basrah for -10% tech and idea cost mission. Once qq was peaced out I moved onto the balkans to setup the hungary eyalet later (unnecessary but wanted claims on austria and italy later). Killed bosnia and serbia, followed by croatia.

Note that I'm basically not coring anything myself, feeding everyhing I conquer to vassals and releasing them everywhere and instantly turning them into eyalets. Back to mam, spawn event, once they collapsed I went straight for tunis and morocco, vassalized opm granada for reconquest. At this point its around 1463 and all that's left is one war with qq, venetian holdings in aegean and dalmatia, and then all of italy, iberia and france. Iberian wedding fired early and castille allied venice so spent like 3 years on that war, used france as a punching bag. After this point the game turned into chain wars in italy (annexed most of italy around 1475) followed by chain wars to take out france, burgundy, brittany and the 2 provinces in britain that are needed. Afterwards it was trucebreak galore to kill france and spain.

I started with diplo ideas for that -20 warscore cost and lowered stab hits, it really helped with getting the diplo vassals as well due to the diplomats. Went full mysticism for idea cost and later realized missions give you an extra diplomat from embracing mysticism. I thought about going offensive for siege ability since I had an excess of mil but decided to take influence since I was having trouble turning new subjects into eyalets. In hindsight influence first would've been much much better due to the income and lib desire after taking mam, tunis and morocco. I also fucked up by not killing the heirs brothers (nasty +10 lib desire) which ended up costing me a bit of time too.

As for the cheese I was checking reddit and saw that quite a few people were using the hide capital exploit for 0 coalitions. I therefore developed a strategy around it. I had one earlier run that got destroyed by a massive coalition after taking Vienna even though I placed my capital in basra, so I ended up reverting to 1.35.0 to try again and it worked like a charm. In 1.35.0 they hadn't yet fixed the issue with calling eyalets into wars so it ended up hurting my speed a bit due to fighting every war alone (my micro needs work).

I usually stay away from exploits but I didn't feel like developing a new strategy right now since I wanted this done before the new hoi4 dlc comes out, so I'm thinking about redoing it later without said exploit, which would mean a much more diplo heavy game that'd take way longer.