with litmatica 1.19.2-0.12.5 my game was crashing every time i used the nether portal because i use sodium . now with 1.19.2-0.12.6 that issue is resolved but my fps drops to 2 with previous version i get up to 200 fps

In what kind of situation, with how large schematics?

Do you get normal FPS if you toggle off the following options/things (only disable one of them at a time!):

• the mod main rendering (M + R)
• the schematic rendering (M + G)
• the placement in question, via the Schematic Placements list

the schematic is large and only one in the area, i do get normal fps when its off and in older version which im using right now im getting about 170 fps right now with the schematic off i get 250 fps

is there any solution yet?

Haven't had the time to look into this yet.