Game crashes while using lossless scaling

Hello there! Now that I've installed lossless scaling, I can finally enjoy 60 fps in Attila Total War on my Steam Deck. The only downside to the game with lossless scaling enabled is that it crashes when I try to access the in-game encyclopedia. Ive find out that the cause of the crash is \~lsf %command% used in the game launch parameters. As soon as I remove the command, the game stops crashing, which of course removes lossless scaling completely. In this regard, I have a question/two possible solutions to the problem:

1. Is there other alternative way to activate lossless scaling on Steam Deck and in Steam games outside the lsf command in the launch parameters?

2. If not, what alternative solution is there to solve the problem? Maybe something can be done to the encyclopaedia in the game’s preferences.script file? But to this point I don’t think that the game has its own command to launch the encyclopaedia from the launch options to avoid crashing

I hope you will help me to find the solution! Thank you in advance!