Strange situation with spotify web player.

[adammalysz1]

First of all, i have bad internet connection and there was no real sites that i could play music without lag issues while playing online games.
About a year ago i discovered spotify web player and it was fantastic. No issues while switching songs, could play games and listening to music whenever i wanted to. About one month ago(surely in May) it randomly started to lagging while switching songs(kinda similar to bufforing videos in youtube, you need to wait for a bit etc.) and there is no room in online games to be lagging for 15-20 seconds. After not having this kind of problem for a year this is frustrating. I don't want spending my money on premium spotify accounts to play it offline.  Is there any way to solve this problem?