64-bit integer instead of float in multiplayer games is a good idea?

I was experiencing problems with float in booleans and mathematical events due to the float’s inaccuracy in the engine not reaching integer values, so I changed most of the variables and events to 64 bit integers but now I’m afraid that this can causes a burden on the server when passing the RPC between clients and server. I still haven’t noticed anything different using 64-bit integer instead of float.