Some of the limitations of a free TezFiles account are:

– Slower download speed (around 80-120 KiB/s)
– Limited storage space (up to 1 GB)
– Smaller upload size (up to 1 GB)
– Only one file per download
– No download accelerators or resumable downloads
– No virus check or video preview

If you want to overcome these limitations, you can upgrade to a TezFiles premium account, which offers more features and benefits, such as:

– Faster download speed (up to 10 MiB/s)
– Larger storage space (up to 10 GB)
– Bigger upload size (up to 10 GB)
– Multiple files per download
– Download accelerators and resumable downloads
– Virus check and video preview

However, the pricing and the download speed may vary depending on the payment method and the reseller you choose. You can also check some reviews and feedback from other users before deciding to purchase a premium account.