You need a low buffer size like around 128 and click the monitor or echo button (depending on your Daw) to here it directly over your playing, or track a wet and DI (dry) signal similtanuously and insert the plugins afterwards.
Hope that help'd
Thanks! That helped a lot. I'm having a problem with a bassy feedback though. I'm using Reaper and have the ReaGate (noise gate) on. I have the master volume on the mixer at -6.13db and the Lecto's volume on the mixer is -0.56db. I can hear it on top of my playing.
My chain goes, Lecto->LAconvolver (with the s-preshigh.wav in channels 1 and 2)->EQ->Gate (gated at -13.8db)