As a matter of fact?
Yes. The worst offsets I have in my FT8 log are -2.6 seconds and +2.5 seconds.
There's also still some opportunity for latency optimization.
With clever coding that can be reduced.
I have a prototype SSB modulator with ~62ms latency working, which is running directly on the PlutoSDR. But I don't think such drastic measures are actually needed for practical usage of FT8.