Performance

So I create a map, no objects, except the player, no plugins, just tiles... and it lags? Are you kidding me? My Anti Virus is disabled, no programs running in the backgrounds and still lags, in deployment or test mode, it doesn't matter.
I play Skyrim, Overwatch and all recent games on maximum settings without any perfomance issues have one of the best internet connections but still can't run a damn 2D game with no objects and plugins at all? Wtf...

that sounds as if you have an event as parallel process but without content there.

Correctly done you can have a dozen parallel processes without problems, but a single bad parallel process can lag anything.
Because no, default games do not lag without causes - as you can see and test with dozens of free downloads

-.- .... the player moves way too slow for me and dash is too fast. The first thing I create in every single project is an empty parallel process which set the player movement speed a bit higher -.- ...Totally forgot about this one event, I changed it now to autorun with a self switch and the lag is gone. Well, thanks.

why do you need a parallel process event for setting the movement speed once? wth? lol.