in d2r you can achieve more bps still get diminishing returns tho
tl:dr unlimited breakpoints in d2r for now

mat bow + fana 14-15:
wsm -10 sias 33 eias 75 fpa 7 => ias 44
wsm -10 sias 33 eias 100 fpa 6 => ias 109
wsm -10 sias 33 eias 134 fpa 5 => ias 377

diamond bow + fana 14-15
wsm 0 sias 33 eias 75 fpa 7 => ias 65
wsm 0 sias 33 eias 100 fpa 6 => ias 152
wsm 0 sias 33 eias 134 fpa 5 => ias 638

gmb or hydra + fana 14-15
wsm 10 sias 33 eias 75 fpa 7 => ias 92
wsm 10 sias 33 eias 100 fpa 6 => ias 215
wsm 10 sias 33 eias 134 fpa 5 => ias 1480

edit:
attack per second:
at 7 fpa 3.57
at 6 fpa 4.16
at 5 fpa 5.00

This post was edited by ThoroBR on Nov 12 2021 06:16am

See I suspected this! I noticed a increase in speed with just random +20% ias from Highlords/cats compared to Atma's.

Where did you find this information?

So if I'm correct my gear should get 75 ias and then I'll hit 92% ias framebreak with lvl 15 fana?

still no and wont change