P96 helps in a huge way for pretty much everything but games using the custom chipset, not just because RTG is miles faster than the custom chipset, but because it uses considerably less resources to emulate it (chipset timing is the killer for slower machines,.... the actual custom chipsets themselves use a tiny fraction of available resources), so while it wont help with games like apidya, its absolutely worth the effort if youre going to be using something like whdload (ergo need an amiga os setup). Not just that, but there's lots of good games that utilise RTG + ahi (quake, quake2, genetic species, myst, earth 2140, napalm, nemac IV, alien breed3d 2 (via patch),doom, heretic, hexen, wolenstien, oneescapee, descent, descenet freespace, duke3d, etc, etc...... most good games that were released in the last 10 years or so).
If you really only want to play all the old floppy based games (even via whdload) then Winfellow might be a better option though as it's significantly faster on old machines than even Winuae.