shared links open slowly and crush as well

Hello,

i've been trying for a while to resolve by myself an issue i have with sharing my prototypes,

when i open the shared link (for presentation) the prototype opens very slowly, interactions don't work well

etc.

my file is approx. 50mb and i've reduced all the image sizes

more to that i find the program itself is crashing now and then as well.

Am i missing something?

Thanks